what enzyme does a gamete producing cell unclude that cpompensates for replication associated shortnening
Answers
Telomerase enzyme is a gamete producing cell include that compensates for replication associated shortening.
Telomerase is the enzyme in charge of guanine-rich repeating sequences being added in order to maintain the length of telomeres. In gametes, stem cells, and tumor cells, telomerase activity is present. Senescence occurs roughly 50–70 cell divisions after senescence, and the potential for proliferation in human somatic cells is severely constrained. On the other hand, the potential for reproduction is generally infinite in tumour cells. The essential function of the mechanism for maintaining telomere length with the participation of telomerase in this process is still not well understood. Without a doubt, DNA polymerase is unable to fully replicate DNA at the very ends of chromosomes; as a result, about 50 nucleotides are lost throughout each cell cycle, leading to a steady shortening of the telomere length. Senescence, the crisis that follows, and cell death are all brought on by critically short telomeres. The machinery for maintaining telomere length is however triggered in tumour cells. Along with catalytic telomere elongation, independent telomerase actions may also be important for controlling the cell cycle. Limiting the capacity for tumour cell replication will be made possible by inhibiting telomerase's catalytic activity and, as a result, ceasing telomere length maintenance. On the other hand, telomerase activation and telomere elongation can be employed to reverse degenerative alterations by causing the development of a momentarily active enzyme by its intracellular activation or as a result of stimulating the production of telomerase components.
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Related Questions
Name one type of food that is made from glycerol and fatty acids.
Answers
Answer:
Fats and oils are esters of glycerol and three fatty acids. ... Other animal and vegetable fats contain predominantly longer-chain SFAs (more than 14 carbons in length) and are found chiefly in meats, butterfat, and some vegetable oils.
Explanation:
Fats and oils are esters of glycerol and fatty acids.
______________ Is a contributing mechanism that works with natural selection by creating combinations of genes that nature selects for or against.RecombinationMutationChromosomeAllele
Answers
Of these terms, the one which is a contributing mechanism in the natural selection is mutation, since this is an alteration of a specific fragment of DNA that can produce an organism to have in advantage or in disvantage with regard to other species.
Why does the earth have Leap years that include 29 February?
Answers
The Earth has leap years every four years to keep our calendar year synced up with the Earth’s position in its orbit around the sun. Our calendar year is based on the length of time it takes the Earth to make one complete orbit around the sun, which is approximately 365.25 days.
To account for this extra quarter-day in the Earth’s orbit, we add an extra day (29 February) to the calendar year every four years. This is called a leap year. However, this doesn’t mean that we have a leap year every four years precisely. To account for the imprecision caused by the 365.25 days figure, there are some additional rules that apply.
The leap year occurs only during years that are divisible by four, except for years that are divisible by 100 but not by 400. For example, the year 2000 was a leap year because it is divisible by 400, while the year 1900 was not a leap year because it’s divisible by 100 but not by 400. This ensures that we keep the calendar year reasonably synchronized with the Earth's movement, which can help with keeping time and making accurate astronomical calculations.
So, leap years and 29 February are a way to adjust the calendar year to align with the actual length of a year as determined by the Earth's orbit around the sun.
The factor that does not affect the rate of photosynthesis is:
A. light
B. temperature
C. humidity
D. presence of pesticides
Answers
D. presence of pesticides
A. more sunlight means more photosynthesis will occur
B. high temperature means more photosynthesis will occur
C. more humidity means more photosynthesis will occur
D. presence of pesticides
Light, temperature and humidity affects the rate of photosynthesis.
I really need help and fast answer all the questions please whoever answers get brainliest
1. A student wanted to test how the mass of a paper airplane affected the distance it would fly. Paper clips were
added before each test flight. As each paper clip was added, the plane was tested to determine how far it would
fly.
Independent variable ___________________________
Dependent variable ____________________________
Control _____________________________
Constant ____________________________
2. Two groups of students were tested to compare their speed working math problems. Each group was given
the same problems. One group used calculators and the other group computed without calculators.
Independent variable ___________________________
Dependent variable ____________________________
Control _____________________________
Constant ______________________________
3. Students of different ages were given the same puzzle to assemble. The puzzle assembly time was measured.
Independent variable ___________________________
Dependent variable ____________________________
Constant ______________________________
There can be several controlled variables. If an experiment is to be useful, only one variable at a time can
be manipulated intentionally. All other variables must be controlled throughout all parts of the
experiment. If more than one variable is altered (changed), the results of an experiment cannot be
interpreted with any validity.
4. An experiment was performed to determine how the amount of coffee grounds could affect the taste of
coffee. The same kind of coffee, the same percolator, the same amount and type of water, the same perking
time, and the same electrical sources were used.
Independent variable ___________________________
Dependent variable ____________________________
Constants (3) ____________________________________________________________
Answers
Answer:
1. Independent variable- paper clips
Dependent variable- how far it will fly.
Control- mass of plane
Constant- type of plane
2. independent variable- using calculators
dependent variable- who will answer the questions faster
Control- the time the groups get done with the math problems
Constant- the math problems
3. Independent variable- Age of children
Dependent variable- the time it takes to complete the puzzle.
Constant- The type of puzzle
4. Independent variable- Amount of coffee grounds
Dependent variable- The taste of the coffee
Constants(3)- The same kind of coffee, same type of water, and the same perking time.
Explanation: The dependent variable depends on the independent variables change. For example: The amount of coffee grounds determine the taste of the coffee. The coffee grounds would be the independent variable because the dependent variable is the taste of the coffee, and the taste of the coffee determines on how much coffee grounds we use. Constants are the things that stay the same during the experiment. For example: We use the same brand of coffee throughout the experiment, so the brand of coffee is our constant. The controls are the things that do change. For example: The paper clips on the plane weighed the plane down more and more each experiment. So, the control would be the amount of paper clips used each test. The mass could also be a control in this experiment because the change in the paper clips changes the mass of the plane. I did this in 7th grade, and i am in 11th, so I know this is correct. I hope this helps you:)
How can Fungus effect Bacteria?
Answers
Answer:
i belive so!
The most common cause of biliary ductal obstruction is the presence of ductal. Cyst. Tumor. Stone. Stricture.
Answers
Answer:
tumor
Explanation:
During production of a drug, all work area surfaces must be disinfected using sterilized disinfectants. Which of the following statements about disinfectants are true? Select all that apply. View Available Hint(s)for Part A Disinfectants destroy all microbes present on a surface. Disinfection can be used to treat work surfaces as well as workers (i.e., washing hands). Disinfection can occur by physical or chemical means. Disinfectants are used to inhibit or destroy pathogens. Endospores and viruses can resist disinfectant treatment.
Answers
Answer: The correct options are
--> Disinfectants are used to inhibit or destroy pathogens,
--> Disinfection can occur by physical or chemical means,
--> Endospores and viruses can resist disinfectant treatment.
Explanation:
To prevent infectious diseases from spreading or to sterilise work area surfaces during the production of drugs, chemicals known as disinfectants as used. These are chemicals that kill or inhibit the growth of pathogens. Other chemicals such as antiseptics can also kill and prevent the growth of mainly pathogenic microorganisms. However, disinfectants are stronger chemicals than antiseptics and so are often used on non-living things and surfaces.
Disinfection does not necessarily kill all microorganisms, especially resistant bacterial spores (endospores) and viruses, so it is less effective than sterilisation.
There are generally two methods of disinfection:
--> The chemical method: A typical example of a chemical disinfectant is the carbolic acid. It is used for disinfecting lavatories and floors.
--> The physical method: here, physical agents are use to disrupt and damage the pathogenic organisms on work surfaces. Some typical example include: UV irradiation, heat, sunlight exposure, sonic or hydrodynamic pressure and radiation.
PLEASE HELP Unlike most organisms the white-tailed deer has thrived in disturbed areas. Explain at least two ways that the increasing human population
has and will continue to impact the white-tailed deer population. In your response, be sure to address both living and nonliving limiting
factors
Answers
Answer:
https://ecosystems.psu.edu/outreach/youth/sftrc/deer/wtd-lesson3
go into this link your answers is discover
The white tailed dear population is influenced by many factors. The factors are predator, habitat alteration, agricultural factors, land management, etc.
Why is white-tailed deer an important species?White-tailed deer are valuable species.
There is the most wide distribution of these species in North America.
White-tailed deer are of this much importance due to their ability to impact many other organisms.
The factors that impacts their population are:
The effects of human pressure on deer population densities results mainly in ecosystems leads to serious fragmentation, such as the tropical dry forest.Habitat alteration: Increasing population of human needs more space for their residence and hence results in habitat alteration.There are many changes in agricultural factors also.Thus, due to all these above mentioned factors the increasing human population is impacting white-tailed deer population.
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Which kind of bedrock would most likely contain fossils? I know the answer is "a series of alternating layers of shale and sandstone,"but why?
Answers
A series of alternating layers of shale and sandstone is a type of sedimentary rock formation that is more likely to contain fossils.
This is because the formation of sedimentary rocks involves the deposition of sediment layers over time, which can preserve the remains of plants and animals in the form of fossils.
Shale is a fine-grained sedimentary rock that forms from the compaction of clay and silt particles. It has a layered structure and tends to split easily into thin sheets. Shale is known for its ability to preserve delicate fossils, such as leaves, insects, and small organisms, due to its fine-grained nature and the presence of water-saturated environments that can help protect the remains from decay.
Sandstone, on the other hand, is a coarser-grained sedimentary rock that forms from the consolidation of sand particles. It often occurs in layers or beds, with varying grain sizes and compositions. While sandstone is not as conducive to fossil preservation as shale, it can still contain fossilized remains, especially larger or more robust organisms that have better resistance to decay and can withstand the process of burial and lithification.
The alternating layers of shale and sandstone create a depositional environment that is more likely to trap and preserve fossils. The fine-grained nature of shale provides a suitable medium for the preservation of delicate fossils, while the coarser-grained sandstone layers can capture and encase larger or more robust fossils. Over time, as the sediments undergo compaction and lithification, the fossils become embedded within the rock layers, allowing scientists to study and interpret past life forms through paleontological investigations.
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______ include everything that is useful as a productive input in its natural state, such as land, forests, mineral and oil deposits, and water .
Answers
The term you are referring to is "natural resources." Natural resources encompass all the elements and materials present in the environment that are considered valuable and useful for human activities. They include everything that is available in its natural state and can be used as productive inputs for various purposes.
Natural resources can be classified into different categories based on their origin and characteristics. Here are some examples:
1. Land and Soil: Land provides a physical space for human activities and supports various ecosystems. It includes arable land for agriculture, forests, grasslands, and other terrestrial environments. Soil, a crucial component of land, is essential for plant growth and agriculture.
2. Water Resources: Water is a vital natural resource, necessary for drinking, irrigation, industrial processes, and the functioning of ecosystems. It includes freshwater sources such as rivers, lakes, and groundwater.
3. Mineral and Energy Resources: This category includes minerals, ores, fossil fuels, and other energy sources. Examples include coal, oil, natural gas, uranium, iron ore, copper, gold, and various other minerals that are extracted and used in industries.
4. Forests and Biodiversity: Forests are rich sources of timber, wood products, and non-timber forest products. They also provide habitat for numerous species and play a crucial role in carbon sequestration and climate regulation.
5. Air and Atmosphere: While not typically thought of as a resource, the atmosphere provides essential gases, such as oxygen and nitrogen, necessary for life. It is also affected by human activities and is a vital component in climate regulation.
Natural resources are essential for sustaining human life and supporting economic activities. However, their availability and distribution are not uniform globally, leading to challenges in resource management, conservation, and equitable access. Responsible and sustainable use of natural resources is crucial to ensure their long-term availability and to mitigate negative environmental impacts.
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anyone who eats a meal high in salt can temporarily increase his or her body's water content. true/false
Answers
True. Eating a meal high in salt can temporarily increase the body's water content
When you consume a meal that is high in salt or sodium, it can temporarily increase your body's water content. This is because sodium is an electrolyte that attracts water, so when you consume more sodium than your body needs, it pulls water into your bloodstream and tissues to maintain a balance of electrolytes.
As a result, your body may retain more water than usual, which can lead to temporary weight gain, bloating, and swelling. This is why consuming a high-salt meal can make you feel puffy and uncomfortable.
However, it's important to note that this increase in water content is temporary and should not be confused with actual weight gain or body fat accumulation. Your body will naturally regulate its electrolyte balance over time, and any excess water will be excreted through urination and sweating.
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the primary organs of the respiratory system are the?
Answers
Other organs of the respiratory systems are the nose, the trachea, and the breathing muscles
What is wrong with the following piece of mRNA? TACCAGGATCACTTTGCCA Multiple Choice It contains A. O It does not include an equal number of As and Ts. It does not include an equal number of Gs and Cs. It contains T and not U. What is wrong with the following piece of mRNA? TACCAGGATCACTTTGCCA Multiple Choice It contains A. It does not include an equal number of As and Ts. It does not include an equal number of Gs and Cs.
Answers
The mRNA is the transcript of a region of the DNA, not the whole DNA, therefore it is smaller than the DNA. It also does not contain exons.
What is the advantage of mRNA?The main advantage of mRNA it does not include an equal number of As and Ts. It does not include an equal number of Gs and Cs. It contains T and not U. TACCAGGATCACTTTGCCA Multiple Choice It contains. It does not include an equal number of As and Ts. It does not include an equal number of Gs and Cs.
In eukaryotic cells, the process of gene transcription uses a fragment of DNA as template in order to synthesize a complementary single-stranded RNA molecule known as primary messenger.
Therefore, The mRNA is the transcript of a region of the DNA, not the whole DNA, therefore it is smaller than the DNA. It also does not contain exons.
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Believe it or not, ____________ within an ecosystem is NOT transferred back and forth between all levels. Energy begins with the ____________ and flows in ____ direction to ____________, to ____________, and, finally, to ____________.
Answers
Answer:
Energy
Sun
One
producers
Consumers
Decomposers
Explanation:
Believe it or not, __Energy__ within an ecosystem is NOT transferred back and forth between all levels. Energy begins with the __Sun__ and flows in __One__ direction to _producers_, to _Consumers_, and, finally, to _Decomposers_.
2. ATP generally energizes a cellular process by
a. Releasing heat upon hydrolysis.
b. Acting as a catalyst.
c. Coupling free energy released by ATP hydrolysis to free energy needed by other
reactions.
d. Breaking a high-energy bond.
e. Binding directly to the substrate(s) of the enzyme.
Answers
According to the research, the correct answer is Option C. ATP generally energizes a cellular process by coupling free energy released by ATP hydrolysis to free energy needed by other reactions.
What is ATP?It is a nucleotide that is essential for cells to obtain energy through an energy transfer process known as phosphorylation.
In this sense, the release of energy generally develops in a controlled manner where part of said energy is incorporated into ATP molecules that, thanks to this process, can be used in endothermic processes such as anabolism (the maintenance and development of the organism).
Therefore, we can conclude that according to the research, the ATP is hydrolyzed whose energy that is released serves to fuel the endergonic reactions.
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which of the following statements are true regarding the early stages of biofilm formation? choose one or more: a. it requires communication between two or more bacterial species. b. cells may initially explore the substrate via twitching motility. c. environmental cues, such as ph and temperature, signal planktonic cells to settle. d. initial attachment involves cell surface structures (such as flagella, fimbriae, pili, and lps). e. early colonists coat the surface with glycoproteins to recruit more cells. f. cells at this stage are very resistant to antibiotics.
Answers
The following statements are true regarding the early stages of biofilm formation:
b. cells may initially explore the substrate via twitching motility
c. environmental cues, such as ph and temperature, signal planktonic cells to settle
e. early colonists coat the surface with glycoproteins to recruit more cells.
f. cells at this stage are very resistant to antibiotics.
The first steps involved in the origin of life on Earth, as well as the growth of living entities from a single cell, can be referred to as the early stage of bioformation.
Scientists think that the early stage of bioformation on Earth began with the formation of simple organic substances such as amino acids, sugars, and nucleotides. These molecules were most likely generated by chemical processes in the early Earth's atmosphere and ocean, which were abundant in carbon, nitrogen, and other important elements. These chemical components merged throughout time to form more complex molecules like proteins, DNA, and RNA, which are the building blocks of life.
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Moving very large molecules out of the cell using a vesicle from the cell membrane is known as?
Answers
Answer: exocytosis
Explanation:
- When molecules are too large or too charged to cross the plasma membrane by diffusion or osmosis, they use vesicular transport, also known as exocytosis. In vesicular transport/exocytosis, vesicles allow large molecules to exit the cell because the vesicle fuses with the plasma membrane and its contents spill out.
hope this helps :)
In an organism, the brain directs the body how to respond to stimuli from the environment. In a cell, this function is performed by the what?
Answers
Answer:
nucleus
Explanation:
Just as the brain represents the control center of the body in organisms, the nucleus represents the control center of the cell.
The nucleus controls and directs all the important homeostatic activities of the cell and ensures that the cell functions properly as a unit. Hence, the nucleus is considered the brain of the cell.
Energy
Source
Coal
Oil
Natural Gas
Nuclear
Solid Waste
(W.T.E.'s)
Energy Resources Comparison Chart
How is the energy
generated?
Where is it used?
(Best and popular locations)
the coal is
19 nited it heads
and holls water
then create steam.
all over the world
but is most
popular in the
United states
Picture
Flver 1000
Advantages
(Write at LEAST 2)
Found all over
the world and
very efficient
Disadvantages
(Write at LEAST 2)
enviromentally
damaging to
mine and relaases
greenhouse gases
27
Answers
Energy from conventional sources is generated by burning fossil fuels like oil, coal, natural gas, etc. The thermal energy generated by burning into high-pressure steam is further converted to mechanical energy.
Conventional energy is used in automobiles, industries, production of electricity, heating and even cooking.
The advantages of conventional energy include its efficiency in conversion and its current availability.
The disadvantages of energy from conventional sources are more compared to its advantages. It has a detrimental effect on all aspects of the environment. The increase in the pollution due to burning of these fuels also affects adversely the health of individuals. These sources are non-renewable and will take millions of years for formation.
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How long does it take for doxycycline to work for bacterial infection?.
Answers
Answer: a few days
Explanation:
In Cellular Respiration, Glucose is transformed into?
Answers
In Cellular Respiration, Glucose is transformed into ATP.
What is ATP?Adenosine triphosphate (ATP), energy-carrying molecule found in the cells of all living things. ATP captures chemical energy obtained from the breakdown of food molecules and releases it to fuel other cellular processes.
During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water. Along the way, some ATP is produced directly in the reactions that transform glucose.
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Only a few Asian carp can cause big problems down the road
True Or False?
Answers
Answer: True
Explanation: Asian carp have no natural predators in the United States and a breeding pair's offspring can overpopulate rivers in a few years. Good luck! :D
to study the details of protein molecules on the surface of a cell a biologist wouldmost likely use a
Answers
Scanning electron microscope (SEM) can be used to study the details of protein molecules present on the surface of a cell. These give a three-dimensional structure of the molecules. Thus, the correct option is A.
What is Scanning Electron Microscope (SEM)?Scanning electron microscope (SEM) is a type of electron microscope, designed to directly study the surfaces of solid objects, that utilizes a beam of focused electrons of relatively low energy is scanned in a regular manner over the specimen to be observed.
Scanning electron microscopes use an electron beam to study samples with a resolution. The electrons are emitted from a filament and collect into a beam in the electron source. The beam is focused on the sample by a set of lenses in the column.
Therefore, the correct option is A.
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Your question is incomplete, most probably the complete question will be:
To study the details of protein molecules on the surface of a cell a biologist would most likely use a:
a. scanning electron microscope
b. transmission electron microscope
c. compound light microscope
d. dissecting microscope
Figure 1.20 shows part of a fungus. The photograph
was taken with an electron microscope.
Name the structure labelled A.
Answers
Answer:
the name of the structure is mycelium
Explanation:
it's made up of hyhae, the fruiting bodies and the shores
Someone help me plzzzzzzzzz
Answers
report you :v
dddddddddddddddd
Answer:
google names of animals & use that lol
Explanation:
use google
Genetic engineering is also known as
Answers
Answer:
Genetic Modification
Match the potential or potential change with the causative circumstances. Assume ion movements are net movements. A. resting membrane potential B. hyperpolarization C. depolarization D. repolarization E. more than one of the answers K leaves the cell, bringing its potential back to the resting value
Answers
A potential or potential change is matched with causative circumstances. Let's discuss each potential or potential change with the causative circumstances. A. Resting membrane potential: A resting membrane potential is the potential difference between the interior and exterior of a cell when it is at rest. This potential is negative, and it exists in all cells, regardless of their function.
This potential difference exists because the concentration of ions in the cell's interior is different from that of the exterior. When a cell is at rest, it has a resting membrane potential of around -70mV. This potential is important for the cell's function as it allows for ion movements to occur.B. Hyperpolarization: Hyperpolarization occurs when the membrane potential becomes more negative than the resting membrane potential. This can happen due to the movement of anions or cations across the membrane.
For example, when K+ ions leave the cell, the cell becomes more negative, leading to hyperpolarization. C. Depolarization: Depolarization occurs when the membrane potential becomes less negative than the resting membrane potential. This can happen due to the movement of cations across the membrane. For example, when Na+ ions enter the cell, the cell becomes less negative, leading to depolarization.
D. Repolarization: Repolarization occurs when the membrane potential returns to the resting membrane potential after being depolarized or hyperpolarized. This can happen due to the movement of ions across the membrane. For example, when K+ leaves the cell, it brings its potential back to the resting value. E. More than one of the answers: It is possible for a single stimulus to cause multiple potential changes, leading to more than one of the answers. In summary, the potential or potential change with the causative circumstances are:
A. Resting membrane potential: Ion concentration gradient B. Hyperpolarization: Movement of K+ out of the cell C. Depolarization: Movement of Na+ into the cell D. Repolarization: Movement of K+ out of the cell E. More than one of the answers: Multiple stimuli
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When you touch an object that is very hot you quickly pull your hand back. What is the correct pathway of nerve impulses for this behavior?
A. Heat receptors in the hand, sensory neurons, brain, motor neurons, hand muscles.
B. Heat receptors in the hand, motor neurons, hand muscles, sensory neurons, brain.
C. Hand muscles, motor neurons, brain, sensory neurons, heat receptors in hand.
D. Brain, sensory neurons, heat receptors in hand, motor neurons, hand muscles.
Answers
A heat receptor>sensory neuron>brain>motor neuron>>hand muscles
Answer:
a
Explanation:
Compare and contrast a series and parallel circuit. Give at least one way that they are alike and one way they are different.
This is physical science btw
Answers
When we talk about series circuit, the current that flows is same through all the components present in it. but in parallel circuits, the components are placed in parallel with each other due to which the circuit splits the current flow.
A parallel circuit has branches in order that current divides and single part of it flows through any branch. Total amount of current that flow in parallel circuit is sum of each branches.
A series circuits is a circuit that has single path through which current passes . A series circuit is one where resistors are connected up, and the current passes through each resistor .
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