How differently, if there would be a change, would a cell
function of the "backbone" of the DNA chain wasn't present?
Answers
The "backbone" of the DNA chain is made up of alternating sugar and phosphate molecules. DNA is responsible for the storage of genetic information. In eukaryotes, DNA is confined to the nucleus, where it is packaged in the form of chromosomes.
In prokaryotes, DNA is not packaged in the form of chromosomes. Instead, it is present in the form of circular plasmids.
If the "backbone" of the DNA chain wasn't present, then the DNA molecule would not be stable. This means that the DNA molecule would be more prone to breaking down. As a result, the cell's ability to store and transmit genetic information would be compromised. In the absence of a stable DNA molecule, the cell would not be able to carry out the functions necessary for life.
The "backbone" of the DNA chain also plays a role in the replication of DNA. During replication, the two strands of DNA are separated, and new strands are synthesized using the existing strands as a template. The "backbone" of the DNA chain provides a framework for the replication machinery to follow. Without a stable backbone, the replication machinery would not be able to function properly, and the cell would not be able to replicate its DNA.
In conclusion, the "backbone" of the DNA chain is an essential component of DNA. Without it, the DNA molecule would not be stable, and the cell's ability to store and transmit genetic information would be compromised. Additionally, the replication machinery would not be able to function properly, and the cell would not be able to replicate its DNA.
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Related Questions
when and where does replication occur?
Answers
Answer:
Replication occurs in the nucleus in eukaryotic cells and in the nucleoid religion in prokaryotic cells.
25 POINTS!! i keep getting bots this is the last time someone actually answer please
A normal body cell of a coyote has 78 chromosomes in its nucleus. What are the diploid (2N) and haploid (N) numbers of the coyote? How many chromosomes would be in each coyote gamete?
Answers
Answer:
39, 78 I think I'm so sorry if I'm wrong
The the diploid (2N) have 78 chromosomes and haploid (N) will have 39 chromosomes in the coyote.
What is diploid and haploid?A cell with a single set of chromosomes is referred to as haploid. The term haploid can also refer to the number of chromosomes in gametes, which are egg or sperm cells.
A diploid cell is one that has two copies of each chromosome. Each chromosome is carried by nearly all cells in the human body in two homologous, or similar, copies.
The only exception are germ line cells, which produce gametes, or egg and sperm cells.
A normal coyote body cell has 78 chromosomes in its nucleus, a diploid (2N) has 78 chromosomes, and a haploid (N) has 39 chromosomes.
Thus, the chromosomes in each coyote gamete will be 78 in diploid cell and 39 in haploid cell.
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Identify the labeled structures.
A:
B:
c:
d:
e:
Answers
Answer:
A. Golgi apparatus
B. Vacuole
C. mitochondria
D. nucleus
E. cell membrane
Explanation
Golgi apparatus
Golgi apparatus, is a cell organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell.
Vacuole
A vacuole is a membrane-bound cell organelle. In animal cells, vacuoles are generally small and help sequester waste products. In plant cells, vacuoles help maintain water balance.
mitochondria
Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions.
nucleus
A nucleus, as related to genomics, is the membrane-enclosed organelle within a cell that contains the chromosomes.
cell membrane
The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell
What process is being used by the cell to move the molecules
Answers
The process that is being used by the cell to move the molecules is known as diffusion.
Diffusion is a method that has to do with the movement of substances within cells. It is also a method that's used for small molecules so that they'll be able to cross the cell membrane. It should be noted that the exchange of gas in the lungs of human beings operates through diffusion. For diffusion to take place, gaseous substances will have to go through the cell membrane in order to be able to go into a cell or out of the cell.Diffusion also takes place where there is a spread in particles. Diffusion is a movement from the region of a higher concentration to a low concentration.
In conclusion, the correct option is Diffusion.
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What process breaks glucose down to be used as an energy source?
Answers
Which of these was formed by the fusion of several bones?
a. Coccyx
b. coxal bone
c. sacrum
d. Each one of these structures was formed by the fusion of several bones.
Answers
Answer:
Sacrum
Explanation:
Sacrum is usually formedby the fusion of several
Sacrum was formed by the fusion of several bones.
What is sacrum?The sacrum, an osseous structure situated at the foundation of the vertebral column, takes the form of a triangular bone. It emerges through the fusion of five individual bones during the embryonic development phase.
The sacrum forms connections with both the pelvis and the coccyx. It assumes the role of providing support to the spinal column while facilitating the transmission of weight from the upper torso to the lower extremities.
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The hormone insulin is produced by what organ in the body?.
Answers
Answer:
pancreas
Explanation:
I am 95% sure
The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. Assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.1×10 −6
C/m 2
. (a) What is the magnitude of the electric field within the cell membrane? (b) Find the magnitude of the electric force that would be exerted on a potassium ion (K ∗
; charge =+e) placed inside the membrane. (a) Number Units (b) Number Units
Answers
(a) The magnitude of the electric field within the cell membrane is 7.1×10⁶ N/C.
(b) The magnitude of the electric force exerted on a potassium ion (K+) placed inside the membrane is 1.6×10⁻¹⁹ N.
(a) The magnitude of the electric field (E) within a capacitor can be determined using the formula E = σ/ε₀, where σ is the charge density and ε₀ is the permittivity of free space. Given a charge density of 7.1×10⁻⁶ C/m², and knowing that ε₀ = 8.85×10⁻¹² C²/Nm², we can calculate the electric field as follows:
E = (7.1×10⁻⁶ C/m²) / (8.85×10⁻¹² C²/Nm²) = 8.03×10⁵ N/C.
Therefore, the magnitude of the electric field within the cell membrane is 8.03×10⁵ N/C.
(b) The electric force (F) experienced by a charged particle inside the membrane can be calculated using the formula F = qE, where q is the charge of the particle and E is the electric field. For a potassium ion (K+) with a charge of +e, where e is the elementary charge (+1.6×10⁻¹⁹ C), and using the electric field calculated above (E = 8.03×10⁵ N/C), we can find the magnitude of the electric force:
F = (+1.6×10⁻¹⁹ C) × (8.03×10⁵ N/C) = 1.29×10⁻¹³ N.
Hence, the magnitude of the electric force exerted on a potassium ion (K+) placed inside the membrane is 1.29×10⁻¹³ N.
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What benefit of intensive gardening makes it worthwhile for plant scientists?
Ο Α.
A. higher yields in a small space
OB.
use of more land
OC.
use of less water
O D.
decreased need for fertilizer and pesticide
Answers
Answer:
A. Higher yields in a small space.
Explanation:
Intensive gardening allows for higher yields in a smaller space, as compared to traditional farming. This makes it beneficial for plant scientists, as it allows them to use less land, water, and fertilizer and pesticide, while still producing a higher yield. Additionally, intensive gardening is a more sustainable form of agriculture, allowing for efficient and sustainable use of resources.
when providing rescue breaths to an adult victim you should give ?
Answers
If an adult victim with spontaneous circulation (ie, palpable pulses) requires support of ventilation, give rescue breaths at a rate of 10 to 12 breaths per minute, or about 1 breath every 5 to 6 seconds.
What is the rescue breath ratio for adults?During rescue breathing, check the victim's pulse every 2 minutes. - Give 1 breath every 2 to 3 seconds (20 to 30 breaths/min). - Give each breath over 1 second, and make sure there is chest rise with each breath.
Perform rescue breathing • Give 2 breaths – enough to allow the chest to rise. Deliver breath over 1 second. Allow the victim to completely exhale before delivering the next breath. Complete 5 cycles of com- pressions and ventilations at a ratio of (30:2).
Give 2 gentle puffs or breaths of air instead of a deep breath. Each puff is given 2 seconds apart because each gentle breath should last 1 second. If the chest rises, breathe a gentle puff or breathe into the victim's mouth a second time.
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8
Select the correct answer.
Which statement best describes the classification of Kingdom Protista?
ОА.
"some of the above."
OB.
"none of the above"
O C.
"all of the plants and fungi."
OD.
"all of the above"
Answers
Kingdom Protista is the classification given to eukaryotic organisms composed of microorganisms that cannot be registered within the fungi, plant and animal kingdoms.
What is Kingdom Protista?Eukaryotic-type organisms that, due to their characteristics, are not part of the kingdoms of fungi, plants and animals, make up the kingdom protista.
This groups a very diverse set of generally unicellular or simple multicellular organisms that do not form tissues, both autotrophic and heterotrophic.
Therefore, we can conclude that Kingdom Protista is the classification given to eukaryotic organisms composed of microorganisms that cannot be registered within the fungi, plant and animal kingdoms.
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Which best describes reproduction?
Answers
Answer:
A sexual reproduction produces offspring that are identical to the parent. Sexual reproduction allows for diploid gametes to combine to increase genetic variation.
Salts and sugars work to preserve foods by creating a Group of answer choices lower pH. hypertonic environment. lower osmotic pressure. hypotonic environment. depletion of nutrients
Answers
Hypertonic environment
How do salts and sugars preserve food?Salts and sugars work to preserve foods by creating a hypertonic environment. Salt and sugar will remove the water from the bacteria or fungi and they will not be able to proliferate. Loss of water results in plasmolysis, or cytoplasmic shrinkage.
What is hypertonic solution and plasmolysis?Compared to another solution, a hypertonic solution has a higher solute concentration.
Plant cells subjected to hyperosmotic stress frequently exhibit plasmolysis as a reaction. The live protoplast violently separates from the cell wall as a result of the loss of turgor. The vacuole is primarily responsible for the plasmolytic process.
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Which of the following statements is (are) true concerning the citric acid cycle?
a. The citric acid cycle is a strictly aerobic pathway.
b. In the Citric acid cycle, acetyl CoA is oxidized to .
c. The electron carriers NAD+ and FAD are used in the citric acid cycle.
d. All of the above.
e. None of the above.
Answers
Among the given statements, the correct option concerning the citric acid cycle is d. All of the above.
The citric acid cycle or Krebs cycle is a metabolic pathway that generates energy through the oxidation of acetyl-CoA, derived from carbohydrates, fats, and proteins, into carbon dioxide. It occurs in the mitochondrial matrix and is the second step in cellular respiration after glycolysis.
The following are the true statements concerning the citric acid cycle:
a. The citric acid cycle is a strictly aerobic pathway. This statement is true as it requires oxygen as the final electron acceptor in the electron transport chain.
b. In the Citric acid cycle, acetyl CoA is oxidized to CO2. This statement is true as the cycle begins with the oxidation of acetyl-CoA to CO2.
c. The electron carriers NAD+ and FAD are used in the citric acid cycle. This statement is true as the cycle generates energy through the reduction of NAD+ and FAD to NADH and FADH2, respectively.
d. All of the above.
Therefore, the correct option is d. All of the above.
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please answer urgently
Answers
Answer:
C- the enzyme is represented by the letter C
Explanation:
Which statement about genetic material is correct
A.Genes encode deoxyribonucleic acid
B. Centromeres connect two chromosomes
C. Chromosomes are made up of genes
D. Chromatids contain chromosomes
PLSS help!
Answers
The chromosomes present in the nucleus of the cell contains hundreds to thousands of genes on them which contain the genetic information of an organism. Thus, the correct option is C.
What is genetic material?The genetic material is the DNA or RNA which is present in the nucleus. It contains all the hereditary information of an organism which is responsible for the cell division and the reproduction of organism to maintain the population of organism.
Genes are the units of chromosomes which are present on the DNA of cells. A single chromosome may contain from hundreds to thousands of genes responsible for various characters.
Therefore, the correct option is C.
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Anthony was saving money each week from his allowance to purchase new basketball shoes for a total of $245 he already had $65 saved up how many weeks will it take for him to reach $245 if he saves $15 each week
Answers
Answer:
It will take him exactly 12 weeks
Explanation:
If he already has 65 you subtract that from 245 and you get 180
You divide 180 by 15 to get the number of weeks and you get 12
How did James Watson characterize Rosalind Franklin in his book, "The Double Helix"?
Answers
Answer:
Watson described Franklin as uncooperative, unattractive, and incompetent in her field.
Explanation:
Which of the following statements is NOT true about the stratosphere?
A.
The stratosphere contains a layer of ozone.
B.
The stratosphere absorbs ultraviolet radiation which protects life on Earth.
C.
Commercial jet aircraft avoid the stratosphere due to the high turbulence there.
D.
The stratosphere is above the troposphere and below the mesosphere.
Answers
Answer:
Explanation:
After doing some g0ogle searches, I believe C is incorrect. Stated from g0ogle, "Commercial jet aircraft fly in the lower stratosphere to avoid the turbulence which is common in the troposphere below. " It seems to me that jets avoid the troposphere, which is below. <3
Answer:
C
Explanation:
which of the following are key elements of darwin's theory of evolution by natural selection?
Answers
Answer:
Independent assortment and crossing over contribute to diversity within a population's gene pool. These processes occur during meiosis and result in the recombination of DNA.
Explanation:
♥☺ hope it helped
The three pillars of Darwin's theory of evolution are genetic variety, fitness, and adaptation. Overproduction and competition are other crucial components of this process.
What Darwin's theory of evolution by natural selection?Charles Darwin's theory of evolution is known as natural selection. Due to the limited supply of resources in nature, animals have inherited traits that aid in both survival and reproduction.
Typically, produce more offspring than their contemporaries, leading to an increase in the frequency of such traits across successive generations.
Natural populations exhibit variation, and every population has more offspring than the environment can support. The result of this Overproduction is that those people who have the highest level of environmental genetic fitness will have offspring who are better able to compete in that environment.
Therefore, Genetic variation, fitness, and adaption are all factors in Darwin's theory of evolution.Overproduction and competition are other crucial components of this process.
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Which fungus is unicellular? chytrid yeast truffle penicillium
Answers
Answer:
Yeast:Unicellular fungus(often referred to as yeastOther examples:Saccharomyces cerevisae(Bakers yeast)Candida SpeciesExplanation:
Hope it helps
After a large period of instability and unrest, Egypt eventually fell to which empire
Answers
Answer:
The Greek Ptolemaic Kingdom, formed in the aftermath of Alexander's death, ruled Egypt until 30 BC, when, under Cleopatra, it fell to the Roman Empire and became a Roman province.
Answer:
The Greek Ptolemaic Kingdom, formed in the aftermath of Alexander's death, ruled Egypt until 30 BC, when, under Cleopatra, it fell to the Roman Empire and became a Roman province.
The theory of endosymbiosis is based onA.evidence from the fossil record B.the knowledge that chloroplasts and mitochondria resemble bacteria C.similarities between chloroplasts and other organelles in animals D.the experiments in which bacteria were grown in plant cells and formed chloroplasts E.the knowledge that ribosomes are structures found in bacteria, plants, and animals
Answers
Endosymbiosis is the theory that mitochondria and chloroplasts originated as independent bacterial cells that were engulfed by another cell and began functioning as organelles within that cell.
Answer: B
Malaria is a disease caused by parasites that reproduce within red blood cells. Malaria can cause fever, chills, nausea, flu-like symptoms, and in some cases, coma and death. This disease is prevalent in warm climates, especially South America, Africa, and the southern portions of Asia.
Sickle-cell anemia is a genetic disorder that causes red blood cells to change shape when they are deoxygenated. The resultant sickle-shaped blood cells can get stuck in blood vessels and cause damage and pain. This disease is also prevalent in South America, Africa, and Asia.
Lately, it was discovered that people who carry the sickle-cell trait heterozygously are resistant to malaria. How could biotechnology best use this infomation to help people living in these areas?
A.
Biotechnology could be used to make the climate cooler so that mosquitoes are unable to breed.
B.
Biotechnology could be used to insert the malaria resistant genes without causing sickle cell anemia.
C.
Biotechnology could be used to eliminate all sickle-cell genes.
D.
Biotechnology could be used to alter the mosquito DNA.
Answers
Answer:
A. Biotechnology could be used to make the climate cooler so that mosquitoes are unable to breed.
Explanation:
Lately, it was discovered that people who carry the sickle-cell trait heterozygously are resistant to malaria. How could biotechnology best use this information to help people living in these areas?
why is it hard for scientists to study hyperthermophile behavior in the laboratory?
Answers
Hyperthermophiles are a type of extremophile that can survive in extremely high temperatures, such as those found in deep-sea hydrothermal vents or Yellowstone's hot springs. These organisms are difficult to study in the laboratory because their extreme environment makes it difficult to maintain the conditions required for their survival.
One of the main challenges in studying hyperthermophiles is providing a source of heat that is hot enough to maintain their optimal growth conditions. Many of these organisms require temperatures of 80-90°C or higher to grow, and traditional laboratory heating methods, such as water baths or incubators, are not capable of reaching these temperatures.
Another challenge is providing the necessary nutrients and other resources that these organisms need to survive. Many hyperthermophiles have very specific nutritional requirements and may require unique growth media or other supplements to support their growth in the laboratory.
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which statement describes a disadvantage of cloning animals
Answers
A disadvantage of cloning animals is that it can lead to a reduction in genetic diversity. When animals are cloned, their genetic material is essentially an exact replica of the original individual. This lack of genetic variation can make cloned animals more susceptible to diseases and environmental challenges.
Genetic diversity plays a crucial role in the survival and adaptation of species. It provides a wider range of genetic traits and variations that can enhance a population's ability to withstand changes in the environment, resist diseases, and respond to evolving ecological conditions.
cloning process itself can be inefficient and can lead to a high rate of unsuccessful attempts and health issues in cloned animals.
Furthermore, the cloning process often requires the use of surrogate mothers, which can involve invasive procedures and potential health risks for the animals involved.
In summary, a significant disadvantage of cloning animals is the reduction in genetic diversity, which can lead to increased vulnerability to diseases and environmental challenges.
Additionally, ethical concerns regarding animal welfare and the health issues often associated with cloning are important factors to consider when evaluating the drawbacks of animal cloning.
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advancements in our understanding of ____ and how DNA functions contribute to our understanding that populations change over time.options:A. geologyB. quantum physicsC. molecular biology D. chemistry
Answers
Question: advancements in our understanding of ____ and how DNA functions contribute to our understanding that populations change over time.
options:
A. geology
B. quantum physics
C. molecular biology
D. chemistry
Explanation:
Molecular biology has supported and expanded our understanding of evolutionary relationships and thus of population change over time. This is because molecular biology explains the phenomena of life from its macromolecular properties and two macromolecules, in particular, are its object of study: nucleic acids, among which is the molecule of heredity or DNA.
Answer:
molecular biology
which synergist would assist the upper-body pectoral muscles to enhance chest stabilization, strength, or power?
Answers
Answer:
The synergist that would assist the upper-body pectoral muscles to enhance chest stabilization, strength, or power is the serratus anterior muscle. This muscle is located on the side of the ribcage and helps to stabilize the shoulder blade when doing chest exercises. It also assists the pectorals in producing force and power when pushing movements. Strengthening this muscle can help to improve your chest stabilization, strength, and power.
mila is assigned to write a paper on the diversity of life. in one section of her paper she describes the differences between individuals of the same species within a population. what specific type of diversity is she referring to? please select the best answer. responses
Answers
Mila is assigned a task to write a paper on the diversity of life. In one of her paper's sections, she defines the differences between individuals of similar species within a population. She is referring to C: genetic diversity.
Genetic diversity refers to the variations in the genetic makeup of individuals within a population or species. This can include variations in DNA sequence, the number and location of genes, and the presence or absence of certain genetic traits. Genetic diversity is important for the survival and adaptation of a species in response to changing environmental conditions. It also plays a key role in the evolution of new species over time.
"
Complete question
mila is assigned to write a paper on the diversity of life. in one section of her paper she describes the differences between individuals of the same species within a population. what specific type of diversity is she referring to? please select the best answer. responses
A- species diversity
B- biodiversity
C- genetic diversity
D- ecosystem diversity
"
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How blood is transported from the vena cava to lungs?
Answers
Answer:Blood is transported from the vena cava to the lungs in the following steps:
Blood enters the heart at the right atrium.Then the atrium contracts, and
the atrio-ventricular valves open.
This causes blood to pass into the right ventricle.
Then the ventricles contract, and
the semilunar valves open.
This causes blood to pass from the pulmonary artery to the lungs.
Explanation: