Homework Answers
Answer
D) option is correct
This population is outbreeding so there is increase in heterozygosity, otherwise heterozygosity can not be more than 50% in an inbreeding population.
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Consider a population of butterflies that varies for a gene that controls antenna length. Heterozygotes for...
You have discovered that a single gene controls the date when monarch butterflies break diapause (=become...
You have discovered that a single gene controls the date when monarch butterflies break diapause (=become reproductively active) in Mexico. You were extremely busy this spring, and extensively sampled one overwintering site to find that 1751 monarchs broke diapause in early February, 424 broke diapause in late February, and 710 broke diapause in early March. You know there are two alleles for this gene (D, d), and that heterozygotes (Dd) break diapause in late February, Monarch butterfly while DD break...
3. You have discovered that a single gene controls the date when monarch butterflies break diapause...
3. You have discovered that a single gene controls the date when monarch butterflies break diapause (=become reproductively active) in Mexico. You were extremely busy this spring, and extensively sampled one overwintering site to find that 1751 monarchs broke diapause in early February, 424 broke diapause in late February, and 710 broke diapause in early March. You know there are two alleles for this gene (D, d), and that heterozygotes (Dd) break diapause in late February, while DD break diapause...
5. Fur colour in mice is a single gene trait controled by two alleles. In a population of 75 mice, 21 are homozyg...
5. Fur colour in mice is a single gene trait controled by two alleles. In a population of 75 mice, 21 are homozygous dominant, 37 are heterozygous dominant, and 17 are homozygous recessive. What is the frequency of the dominant allele in the population? Show all work and record your answer as a value between O and 1 rounded to two decimal places 6. The Hardy-Weinberg principle states that allele and genotype frequencies remain constant from one generation to the...
8. Let's say that in seals, the gene for the length of the whiskers has two...
8. Let's say that in seals, the gene for the length of the whiskers has two alleles. The dominant allele (W) codes long whiskers & the recessive allele (w) codes for short whiskers. What percentage of offspring would be expected to have short whiskers from the cross of two long-whiskered seals, one parent is homozygous dominant and the other one is heterozygous? If one parent seal is pure long-whiskered and the other is short-whiskered, what percent of offspring would have...
In the gene pool of a population with 132 individuals, a fixed allele for a particular...
In the gene pool of a population with 132 individuals, a fixed allele for a particular genetic locus has a frequency of Select one: O a. 1 O b. More information is needed to determine this. O c. 0.75 O d.o O e. 0.5 Which of the following does not have the ability to alter allele frequencies? Select one: O a. gene flow O b. inbreeding O c. genetic drift O d. natural selection O e. All of these have...
1. You are studying a population of sandblossoms (Linanthus parryae) that has individuals with blue and...
1. You are studying a population of sandblossoms (Linanthus parryae) that has individuals with blue and white flowers. The allele for white flowers (A) is dominant to the allele for blue flowers (a). In the population you survey, 91 out of 100 individuals have white flowers. Based on this information: a. Calculate the frequency of the A and a alleles. b. Calculate the numbers of each genotype. 2. A population of snapdragons (Antirrhinum hispanicum) has two additive alleles for flower...
In a population of mice a particular locus has two alleles A1 (dominant) and A2 (recessive)....
In a population of mice a particular locus has two alleles A1 (dominant) and A2 (recessive). There are 126 A1A1, 167 A1A2 and 88 A2A2. Is this population in Hardy-Weinberg equilibrium (3 pts)? In a population of Gragons, there are 3151 A1A1, 1678 A1A2 and 2014 A2A2 individuals. If the environment changes so that the homozygous recessive genotype suffers a reduction of fitness where its fitness is now 0.73, but the other genotypes are unaffected, what will be the frequency...
17.You are a geneticist studying the population genetics of Monarch butterflies. You are particularly interested in...
17.You are a geneticist studying the population genetics of Monarch butterflies. You are particularly interested in one gene for which the species has two alleles: B and b. Upon examining the alleles present in 100 individuals, you find that the B allele is very common, with an allele frequency of .6. Therefore, you calculate that there are a total of _______ b alleles present in the population. Group of answer choices A) 60 B) 80 C) 100 D) 120 E)...
7. Why do dominant alleles tend to be advantageous and recessive alleles tend to be disadvantageous...
7. Why do dominant alleles tend to be advantageous and recessive alleles tend to be disadvantageous in most populations? 8. You are studying a population of parrots and you observe that there are two alleles for wing color. Allele 1 codes for green wings and is dominant over allele 2, which codes for red wings. Allele 2 is at a frequency of 70% of the population, what should be the frequency of allele 1 homozygotes? 9. You are studying a...
Testing the goodness of fit between the data and the Hardy Weinberg equilibrium model generated expectations....
Testing the goodness of fit between the data and the Hardy Weinberg equilibrium model generated expectations. 4.1 In a species of bird, feather color is controlled by genes at a single locus, with the red feather allele dominant to the yellow feather allele. A population has 22 red and 14 yellow birds, with 9 of the red birds having a homozygous dominant genotype. Is this population in equilibrium? Calculate p and q from the number of individuals of each genotype:...
5. Fur colour in mice is a single gene trait controled by two alleles. In a population of 75 mice, 21 are homozygous dominant, 37 are heterozygous dominant, and 17 are homozygous recessive. What is the frequency of the dominant allele in the population? Show all work and record your answer as a value between O and 1 rounded to two decimal places 6. The Hardy-Weinberg principle states that allele and genotype frequencies remain constant from one generation to the...
8. Let's say that in seals, the gene for the length of the whiskers has two alleles. The dominant allele (W) codes long whiskers & the recessive allele (w) codes for short whiskers. What percentage of offspring would be expected to have short whiskers from the cross of two long-whiskered seals, one parent is homozygous dominant and the other one is heterozygous? If one parent seal is pure long-whiskered and the other is short-whiskered, what percent of offspring would have...
In the gene pool of a population with 132 individuals, a fixed allele for a particular genetic locus has a frequency of Select one: O a. 1 O b. More information is needed to determine this. O c. 0.75 O d.o O e. 0.5 Which of the following does not have the ability to alter allele frequencies? Select one: O a. gene flow O b. inbreeding O c. genetic drift O d. natural selection O e. All of these have...
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