Huntington's disease is an inherited autosomal dominant disorder that can affect both men and women. Imagine a couple has had seven children, and later in life, the husband develops Huntington's disease. He is tested and it is discovered he is heterozygous for the disease allele, Hh. The wife is also genetically tested for the Huntington's disease allele, and her test results show she is unaffected, hh.
What is the percent probability that the first child of this couple will have Huntington's disease?
probability: %
What is the percent probability that four of the seven children will have Huntington's disease?
probability: %
Answers
1. The percent probability that the first child of the couple will have Huntington's disease is 50%
2. The percent probability that four of the seven children will have Huntington's disease is 6.25%
Genetical probabilitiesThe disease is autosomal dominant. Only one dominant allele is needed for the disease to be manifested.
The husband is Hh and the wife is hh.
Hh x hh
Hh Hh hh hh
Hh (affected) = 1/2
hh (unaffected) = 1/2
1. Probability that the first child of this couple will have Huntington's disease is the same as the probability of having the disease. Thus, it is 1/2 (50%)
2. Probability that four of the seven children will have Huntington's disease is the same as the probability of having the disease in 4 places.
1/2 x 1/2 x 1/2 x 1/2 = 1/16 or 6.25%
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Related Questions
Help Please Help
What are the advantages and disadvantages of using genetic information in society?
Answers
Answer:
Advantages:
It follows the same scientific principles that have been practiced for generations.
It makes agricultural practices much safer.
It creates greater yields.
It allows us to create better food products.
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Disadvantages:
It is a technology that can be easily abused.
It is a process that can be copyrighted in the United States.
It creates difficult legal liabilities with unintended consequences.
It limits the amount of diversity that is available.
Explanation:
Qué factores interviene en la manifestación de los genes? (pregunta de indagación)
Toma en cuenta el concepto de gen: El gen es la unidad física básica de la herencia. Los genes se transmiten de los padres a la descendencia y contienen la información necesaria para precisar sus rasgos. Es la unidad molecular de la herencia genética, pues almacena la información genética y permite transmitirla a la descendencia.
Ahora, planteamos nuestra HIPÓTESIS o respuesta probable a nuestra pregunta de indagación. Recordemos que tiene que tener las dos variables en relación de causa – efecto.
VARIABLE INDEPENDIENTE (CAUSA) VARIABLE DEPENDIENTE (EFECTO) INTERVINIENTES
Answers
En este caso, la hipótesis podría ser: los genes se manifiestan de acuerdo a mecanismos genéticos y ambientales. En este caso, las variables independientes (causas) podrían estar representadas por interacciones génicas e intergénicas tales como relación de dominancia completa o epistasis (factores genéticos) o bien cambios de temperatura (factores ambientales), los cuales inciden sobre la variable dependiente (grado de expresión génica) y cuyos efectos están representado por el fenotipo del individuo.
La hipótesis es una explicación plausible a un fenómeno observado en el mundo natural, la cual puede ser comprobada (o rechazada) mediante el uso del método científico.La variable independiente o 'causa' puede ser definida como la variable que produce un efecto sobre la variable dependiente, y que no cambia a lo largo del experimento.Por otra parte, una variable dependiente es una variable que cambia a lo largo del experimento de acuerdo a la variable independiente y que el investigador mide para determinar el efecto de la variable independiente.Aprende más sobre este tema en:
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Specimens are put on swings before being looked at under the microscope, true or false?
Answers
Answer:
According to what i know they are put under SLIDES not SWINGS
Explanation:
hope it helps
how do Euglena reproduce?
Answers
If the mother's actual genotype is IA i and the father's blood type is IB i, what is the probability of their child having AB blood?
Answers
Answer:
1/4
Explanation:
punnett squares!
A single gene with two alleles control variation in haemoglobin type in sheep. There are three different phenotypes corresponding to genotypes S^AS^A S^AS^B and S^BS^B respectively in a flock of 175 sheep the frequency of allele S^A was found to be 0.6 and frequency of allele S^B WAS found to be 0.4
Answers
Populations in Hardy-Weinberg equilibrium express the same allelic and genotypic frequencies through generations. Number of individuals expressing each phenotype: 63 sheep S^AS^A, 84 sheep S^AS^B, 28 sheep S^BS^B.
What is Hardy-Weinberg equilibrium?The Hardy-Weinberg equilibrium theory states that allelic and genotypic frequencies in populations that is in equilibrium remain the same through generations. No evolutive forces are acting on these populations, so no evolution occurs.
Assuming a diallelic gene,
Allelic frequencies
The frequency of the dominant allele f(X) is pThe frequency of the recessive allele f(x) is qGenotypic frequencies
p² (Homozygous dominant genotypic frequency), 2pq (Heterozygous genotypic frequency), q² (Homozygous recessive genotypic frequency).The addition of the allelic frequencies equals 1
p + q = 1.
The sum of genotypic frequencies equals 1
p² + 2pq + q² = 1
In the exposed example,
Alleles Frequencies
S^A f(S^A) = p = 0.6S^B f(S^B) = p = 0.4Genotypes
S^AS^A ⇒ homozygousS^AS^B ⇒ heterozygousS^BS^B ⇒ homozygousWe need to get the number of animals expressing each genotype and phenotype. To do it, we just need to use allelic frequencies and calculate genotypic frequencies (p², 2pq, and q²), and then multiply these values by the total number of animals (N = 175).
Genotypic and Phenotypic frequencies
F(S^AS^A) = p² = 0.6² = 0.36
F(S^AS^B) = 2pq = 2 x 0.6 x 0.4 = 0.48
F(S^BS^B) = q² = 0.4² = 0.16
Number of individuals expressing each phenotype
S^AS^A ⇒ 0.36 x 175 = 63 individualsS^AS^B ⇒ 0.48 x 175 = 84 individualsS^BS^B ⇒ 0.16 x 175 = 28 individualsYou can learn more about the Hardy-Weinberg equilibrium at
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Complete question
A single gene with two alleles control variation in haemoglobin type in sheep. There are three different phenotypes corresponding to genotypes
S^AS^A S^AS^B and S^BS^BIn a flock of 175 sheep the frequency of allele S^A was found to be 0.6 and frequency of allele S^B WAS found to be 0.4.
Using the hardy weinberg equation calculate the number of sheep with each phenotypes in the flock show your working
Tests: Watch the following video https://youtu.be/f6c2cZfOULI Start at 3:20.
What are the independent and dependent variables in this experiment?
Independent:
Dependent:
What is the control and the constants to ensure test validity in this experiment?
Answers
According to the information, we can infer that the Independent variable: Temperature (specifically, the range of temperature). On the other hand, Dependent variable: Distribution of pikas. Additionally, Control: Pikas within their tolerance range of temperature and Constants: Other environmental factors, habitat conditions, and population of pikas.
What are the independent and dependent variables in this experiment?In this experiment, the independent variable is the temperature, specifically the range of temperature. The researcher will manipulate and observe how different temperature ranges affect the distribution of pikas.
The dependent variable is the distribution of pikas. It refers to the geographical or spatial range in which pikas are found. The researcher will measure and analyze how the distribution of pikas changes in response to different temperature ranges.
What is control and the constants to ensure test validity in this experiment?To ensure test validity, a control group of pikas within their tolerance range of temperature needs to be included. This group will experience temperatures within the range they can tolerate, providing a baseline for comparison. By comparing the distribution of pikas in different temperature ranges to the control group, the researcher can determine the impact of temperature on their distribution.
To maintain validity, other environmental factors such as altitude, precipitation, vegetation, and habitat conditions should be kept constant across the experimental groups. Additionally, the population of pikas being studied should be consistent, without any significant changes in population size or genetic composition throughout the experiment. These constants help isolate the effect of temperature on pika distribution and minimize confounding variables.
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where would you like to travel to search for new organisms
Answers
I think that I did these wrong. Is there anyone that can clarify if they are right?
Answers
For four it should be there are no carriers because they were affected(female)
What are the best techniques for anchoring aquarium plants in substrate to ensure their healthy growth?
Answers
A few techniques that can be used to anchor aquarium plants in substrate for healthy growth includes; Tieing the plant to a rock or piece of driftwood, Using plant weights, Planting the plant in a pot and Using aquarium glue.
How would you use the above mentioned techniques to anchor aquarium plants?Tying the plant to a rock or piece of driftwood: This method works great for plants with rhizomes, like Anubias and Java Fern, as you mentioned.
Planting the plant in a pot: Some plants can do well when planted in pots with their preferred substrate. This is good because it is in a controlled enviroment and you can move plant without disturbing the plant.
plant weights: This method is said to be okay for buoyant plants that tend to float away before their roots can establish. However this can be disadvantagous if the weight is made with lead.
aquarium glue: This can be very effective for certain types of plants. It's important to use a glue that is safe for aquarium use (i.e., cyanoacrylate-based glues).
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A town in the Finger Lakes region wants to promote solutions to reduce acidification. In order to help the town in their efforts, what solution should they promote? Explain why
decreased motor boat traffic on the lake
increased introduction of zebra mussels
decreased use of CFCs
protect the fish species living in the lake
Answers
Answer:
Explanation: The town in the Finger Lakes region should promote the solution of decreased motor boat traffic on the lake. Acidification is mainly caused by the high levels of carbon dioxide that enter the water from the atmosphere, and motor boat traffic can worsen this by increasing the amount of carbon dioxide in the air. Reducing motor boat traffic on the lake would help to decrease the amount of carbon dioxide entering the water, and thus reduce acidification. The other solutions listed (increased introduction of zebra mussels, decreased use of CFCs, and protecting fish species) may have other environmental benefits, but they are not directly related to reducing acidification.
Which of the following best describes the term 'polymer'?
A. A small monomer.
B. Small molecules.
C. A large monomer.
D. A large molecule made of many monomers.
Answers
Answer: A large molecule made of many monomers.
Explanation:
The following graph shows the effect of light on the rate of photosynthesis. Which of the following phenomena can be explained by this graph.
Help plis is not all of the above is wrong!
Answers
Answer:
I think I know give me a min and I can help you
An animal with a larval form that disperses by drifting in ocean currents and an adult form that is attached to a surface is most likely to exhibit ______ as a larva and ______ as an adult. bilateral symmetry . . . bilateral symmetry bilateral symmetry . . . be asymmetrical radial symmetry . . . radial symmetry radial symmetry . . . bilateral symmetry bilateral symmetry . . . radial symmetry
Answers
Answer:
Bilateral symmetry as a larva
Radial symmetry as an adult
Explanation:
Bilateral symmetry refers to the division of the animal through a longitudinal plane, int two mirror-image, right and left halves, as seen in organisms such as insects, reptiles or in man. Animals with bilateral symmetry have anterior and posterior halves (head and tail), dorsal and ventral (front and back), and right and left sides. Most animals are bilaterally symmetrical. Animals with bilateral symmetry are best suited for active lifestyles involving streamlined and directional motion.
Radial symmetry refers to the arrangement of body parts around a central axis, just like rays on a sun, ie.they have bodies that seem to radiate outwards from a central point. Animals that are radially symmetrical have top and bottom surfaces only but no left and right sides, or front and back sides. Animals that have radial symmetry are best suited for sedentary lifestyles and are usually attached to some surface (sessile)
An animal with a larval form that disperses by drifting in ocean currents and an adult form that is attached to a surface is most likely to exhibit bilateral symmetry as a larva and radial symmetry as an adult.
how many nucleotides make up one codon?
A. 1
B. 2
C. 3
D. 4
Answers
Answer:
C. 3
Explanation:
because 3 nucleotides in one codon
Explain why habitats with high biodiversity tends to contain narrow ecological niches and white habitats?
Answers
Answer:
because they reduce interspecific competition
Explanation:
Narrower niches are known to be more specific and limited compared to broader niches, which are generally less specific and less limited. The species that live in broad niches are named generalists because they are able to withstand different conditions. A narrow niche is often correlated with reduced overlap and thus tends to reduce interspecific competition. For example, coral reefs consist of a wide variety of species (including anemones, sea sponges, sea fans, brain corals, etc) which have narrow niches, thus showing high biodiversity.
27. What substance is a liquid at -200 °C?
carbon
phosphorus
xenon
arsenic
nitrogen
Answers
Answer:
its nitrogen..........
What is the relationship between photosynthesis and cellular respiration?
Answers
Answer:
Photosynthesis converts carbon dioxide and water into oxygen and glucose.
Explanation:
Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.
How many hydrogen atoms would form chemical
bond(s) with one carbon atom?
a 1
b 2
C4
d 8
Answers
Answer:
The answer is C. 4 Hydrogen atoms.
Explanation:
Four hydrogen atoms can make a bond with one carbon atom so that it is stable i.e., it attains a noble gas configuration. As in methane CH4.
Hope this helps :)
Answer:
C. 4
Explanation:
Carbon has four electrons in its valence (outermost) electron shell. Therefore, it will form covalent bonds with four hydrogen atoms.
What two words must always be in a hypothesis
Answers
Answer:
The hypothesis is an educated guess as to what will happen during your experiment. The hypothesis is often written using the words "IF" and "THEN." For example, "If I do not study, then I will fail the test." The "if' and "then" statements reflect your independent and dependent variables
Explanation:
Answer:
"If" and "Then"
Explanation:
If and then are reflecting your independent and dependent variable.
An example- If i dont eat lunch then i will be hungry.
Hope it helped :)
What can happen after a lake receives a large input of a limiting nutrient?
Answers
If helped mark me the brainiest
ses/17549/discussion_topics/235908
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NCCT
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Log In to Canvas Cengage eTextbook
Receptionist and the Medical Office Environment Ethics:
Chapter 5 discusses the emerging role of the medical receptionist, which includes knowing and understanding a wide
variety of laws and regulations, answering an almost constantly-ringing telephone, reviewing insurance cards, determining
insurance types or managed care plans, entering demographic data into the computer, posting a variety of transactions,
scheduling appointments, and professionalism. In other words, working as a receptionist in a medical office should be a
professionally trained medical assistant who is flexible and prepared for a variety of duties.
Scenario:
You are the patient and enter a medical office. You notice a faint smell of urine and approach the reception desk where the
receptionist is talking on the telephone. She never looks up and you wait at the desk for a few minutes, but finally give up
and sit down. She keeps talking while chewing gum and you notice her blouse is low-cut.
Instructions: For your initial post, answer the following 2 questions:
a. Discuss three (3) possible ways you could respond to her without seeming rude or embarrassing her (in your own
words).
b. How should this behavior be addressed? Who should address this employee?
Cl
Answers
a. Discuss three (3) possible ways you could respond to her without seeming rude or embarrassing her (in your own words):
Approach the situation with empathy: Begin by acknowledging the receptionist's presence and politely express your need for assistance. You can say something like, "Excuse me, I'm sorry to interrupt. I have an appointment and was wondering if you could help me with the check-in process?"Express concern and ask for clarification: In a non-confrontational manner, mention the faint smell of urine and inquire if there is a maintenance issue or if they are aware of the situation. You can say, "I noticed a faint smell and wanted to make sure everything is alright. Is there perhaps a maintenance issue that needs attention?"Provide feedback in a constructive manner: Share your observations about the receptionist's behavior without accusing or being judgmental. Use "I" statements to express how their actions made you feel. For example, you could say, "I noticed you were on the phone and it took me a while to get assistance.b. How should this behavior be addressed? Who should address this employee?
The behavior of the receptionist should be addressed to ensure a professional and welcoming medical office environment. Ideally, the responsibility lies with the supervisor or manager of the medical office.
The supervisor or manager should approach the situation with professionalism and sensitivity, providing clear feedback on the observed behavior and its impact on patients.
The discussion should also provide an opportunity for the receptionist to share any challenges they may be facing or reasons for their behavior, allowing for open communication and the possibility of addressing any underlying issues.
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The diagram below shows a portion of the geologic time scale.
Based on the time scale, it can be concluded that
A. animals appeared on Earth before flowering plants.
B. land animals created the first oxygen molecules.
C. flowering plants appeare on Earth before animals.
D. flowering plants created the first oxygen molecules.
Answers
Im not sure but I think A
Answer:
A. animals appeared on Earth before flowering plants.
Explanation:
Hope you have a great day
What's the correct term for the descriptions
Creates proteins:
Packages proteins:
Moves proteins to the correct regions of the cell:
Fortifies the cell shape:
Mostly made of water:
Microtubule, Cytosol, Golgi Apparatus, Rough Endoplasmic Reticulum, Lysosome, Ribosome
Answers
Creates proteins: Ribosome
Packages proteins: Golgi Apparatus
Moves proteins to the correct regions of the cell: Microtubule
Fortifies the cell shape: Cytoskeleton
Mostly made of water: Cytosol
Ribosomes are organelles that are responsible for creating proteins by assembling amino acids based on the information provided by messenger RNA (mRNA). They can be found in both prokaryotic and eukaryotic cells. The Golgi Apparatus is a stacked organelle that modifies, sorts, and packages proteins into vesicles for transport to their final destinations within the cell or for secretion outside the cell.
Microtubules are part of the cytoskeleton, which is a network of protein fibers that provide structural support and shape to the cell. Microtubules are responsible for moving proteins and other cellular components to the correct regions of the cell, and they also play a role in cell division. The cytoskeleton is the network of protein fibers that provide structural support and shape to the cell. It is responsible for fortifying the cell shape and helping the cell maintain its structural integrity.
The cytosol is the liquid portion of the cytoplasm, which is the gel-like substance that fills the cell. It is mostly made of water and contains various dissolved ions, molecules, and proteins that are essential for cellular processes.
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before mitosis begins a cell makes a copy of the dna in the nucleus. What term is used to describe this process of making an exact copy of the dna
Answers
DNA replication
Explanation:
acute labyrinthitis is sudden onset of inflammation of the structures that form the membranous labyrinth. which of the following structures would not be inflamed with this condition? a) Semicircular canals
b) Malleus
c) Utricle
d) Cochlea
Answers
Malleus would not be inflamed with acute labyrinthitis because The malleus is an ossicle it is not part of the inner ear.
The condition known as labyrinthitis, which affects balance, can be brought on by an infection or inflammation of the inner ear. When you have an upper respiratory infection, such as the flu, you may occasionally contract it.
Viruses frequently induce labyrinthitis-causing inner ear infections. At times, bacteria may also be the culprit. Doctors must distinguish between viral and bacterial diseases since their symptoms can sometimes be so similar.
The malleus, or hammer, is a hammer-shaped small bone or ossicle of the middle ear. It connects with the incus, and is attached to the inner surface of the eardrum. The word is Latin for 'hammer' or 'mallet'. It transmits the sound vibrations from the eardrum to the incus (anvil).
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If you use a cladistic approach (organizing taxonomic groups by clades) in grouping organisms together, the resulting classification scheme:
Answers
Answer:
The classification scheme is ancestor.
Explanation:
In cladistic approach is a type of classification in which organisms are classified on the basis of their common ancestor. Those organisms are placed in one group which have common ancestor and share same characteristics or which are evolved from a common ancestor. With the passage of time changes occurs within the body of organisms so these organisms are different from one another in physical structure but have a common ancestor.
Random question would u prefer foxes or lion?
Answers
Answer:
lions
Explanation:
I would prefer lions because of their size and looks.
The organization of the cell and the organisms is maintained through the use of _______. A. Metabolism B. Responsiveness C. Energy D. Synthesis
Answers
Answer:
C. Energy
Explanation:
Which actions are involved in the immune response?
regulating hormonal and autonomous responses
identifying and destroying harmful substances
increasing and supporting the ability of red blood cells to carry oxygen
regulating and adjusting the skin's secretion of sweat and oil
Answers
Identifying and destroying harmful substances are the actions that are involved in the immune response. Thus, the correct option is B.
What is the Immune response?The immune response may be defined as the way by which the body of an individual defends itself against some foreign or harmful substances.
The immune system of the body always defends the body of an organism by inducing several responses against foreign or harmful substances and finally eliminates them.
Therefore, the correct option for this question is B.
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