Population Genetics
A gene at an autosomal locus in one individual in a population of 24 barn cats
undergoes mutation to a new neutral allele.
What is the probability that the allele eventually becomes fixed?
What is the probability that it eventually becomes lost?
What are the answers if the mutant gene is X-linked and the population consists of
equal numbers of males and females?’
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Given a diploid sexual population of mammals where mutation, selection and migration do not occur, and...
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Coat color in cats is partially determined by the X-linked O locus. OO females and OY males are orange, while oo females and oY males are black. Oo females are a mosaic of orange and black (calico cats). In a population of cats where this locus is at Hardy-Weinberg equilibrium, 4% of males are orange. a) What is the frequency of the o (black) allele in the population? ____________ b) What is the expected frequency of calico cats in this population, assuming equal...
3. Initial cross: Now become familiar with the phenotype of Cy/Pm D/Sh fties and with the...
3. Initial cross: Now become familiar with the phenotype of Cy/Pm D/Sh fties and with the phenot of the mutant stock of flies your instructor has chosen for you to identify as to linkage group To locate the selected mutant gene in its linkage group or chromosome, roceed as follows: Select virgin females homozygous for the mutant gene arbitrarily designate the allele as m) that you are to locate. Mate such virgin mutant females to Cy/Pm D/Sb males. 4. What...
Question 2: In an outbreeding diploid population, an autosomal locus has two alleles, A1 and A2....
Question 2: In an outbreeding diploid population, an autosomal locus has two alleles, A1 and A2. You observe the allele frequencies of A1 and A2 are both equal to 0.5, and the relative fitnesses of the three genotypes (A1A1, A1A2, and A2A2) are equal to 2, 1.5, and 1, respectively. A) Which allele will become fixed in this population? (1 point) **The recessive beneficial allele A2A2 will eventually become fixed in the population (A2A2=1) B) What is the allele frequency...
Please answer all of the following questions and show all work as well please. Innn As...
Please answer all of the following questions and show all work as
well please.
Innn As you already know, color-blindness is an X-linked recessive trait. The frequency of males afflicted by the trait is 8% in the general population. Which of the following statements accurately describes the approximately 5,000 students (3,000 females and 2,000 males) that go to Fisher? [Again, assuming that Fisher is representative of the general population.] 1 400 males and 32 females are likely colorblind. (2) 13...
A certain population contains equal numbers of males and females. 40% of the population has long...
A certain population contains equal numbers of males and females. 40% of the population has long hair. 35% of the population is female with long hair. If an individual is randomly selected from this population, the probability that the individual is female or has long hair (or both) is
A certain population contains equal numbers of males and females. 40% of the population has long...
A certain population contains equal numbers of males and females. 40% of the population has long hair. 35% of the population is female with long hair. If an individual is randomly selected from this population, the probability that the individual is female or has long hair (or both) is
4. The Hardy-Weinberg Proof. Consider a gene that has only two alleles R (dominant) and r...
4. The Hardy-Weinberg Proof. Consider a gene that has only two alleles R (dominant) and r (recessive). The sum total of all R plus all r alleles equals all the alleles at this gene locus, or 100% of all the alleles for that gene. Let p = the percentage or probability of all R alleles in the population. Let q = the percentage or probability of all r alleles in the population. If all R + all r alleles =...
1. In humans, X and Y chromosomes are technically not homolous Explain how X and Y...
1. In humans, X and Y chromosomes are technically not homolous Explain how X and Y chromosomes pair up in cells of males prior to cell division 2. Familial breast cancer is caused by mutations in the BRCA1 gene which is located on human chromosome 17. Females with a mutation in BRCA1 gene have an 80% lifetime risk of developing breast cancer. Therefore, out of 100 women who carry the disease-causing mutation, only 80 will develop breast cancer. Why is...
Question 1: Antibiotics are effective against a population of bacteria. However, you observe a new resistance...
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3. Initial cross: Now become familiar with the phenotype of Cy/Pm D/Sh fties and with the phenot of the mutant stock of flies your instructor has chosen for you to identify as to linkage group To locate the selected mutant gene in its linkage group or chromosome, roceed as follows: Select virgin females homozygous for the mutant gene arbitrarily designate the allele as m) that you are to locate. Mate such virgin mutant females to Cy/Pm D/Sb males. 4. What...
Please answer all of the following questions and show all work as
well please.
Innn As you already know, color-blindness is an X-linked recessive trait. The frequency of males afflicted by the trait is 8% in the general population. Which of the following statements accurately describes the approximately 5,000 students (3,000 females and 2,000 males) that go to Fisher? [Again, assuming that Fisher is representative of the general population.] 1 400 males and 32 females are likely colorblind. (2) 13...
1. In humans, X and Y chromosomes are technically not homolous Explain how X and Y chromosomes pair up in cells of males prior to cell division 2. Familial breast cancer is caused by mutations in the BRCA1 gene which is located on human chromosome 17. Females with a mutation in BRCA1 gene have an 80% lifetime risk of developing breast cancer. Therefore, out of 100 women who carry the disease-causing mutation, only 80 will develop breast cancer. Why is...
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