In a population of fresh-water fish, there are 2 types of scaling patterns- rough and smooth. It is known that the rough pattern is recessive, and 30% have rough scales. What is the frequency of fish that are homozygous dominant? а. 0.09 b. 0.21 с. 0.46 d. 0.54
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- 1. The frequency of PKU in the human population is 1 X 104.What is the expected frequency among the offspring of first cousins (F=1/16)? A D B.1. p + q = 1 2. p2+ 2pq + q2 Male grey tree frogs vary in the duration of call they give dug in mating seasons. In a sample from a population of frogs, 68/212 male frogs are "short callers." If "short callers" are homozygous recessive, what is the frequency of the dominant allele in this sample? 1. 0.67 2. 0.32 3. 0.57 4. 0.431.) Consider flower color in a hypothetical population of 7,000 flowers, red flowers (4,000), blueflowers (2,000) are dominant over pink flowers. If there are 1,000 pink flowers, find thefollowing:a. Frequency of dominant (red flower) alleleb. Frequency of recessive (pink flower) allelec. Frequency of each genotype (homozygous dominant, homozygous recessive,heterozygous)d. Make a Punnett square and use the rule of multiplication.
- 24. In a toad population, green toads produce 4 offspring over their lifetime, brown toads produce 2.5 offspring, and gray toads produce 6 offspring. What are the relative fitnesses of these phenotypes (in the order green, brown, gray)? Group of answer choices 1, 0.42, 0.67 0.33, 1, 0.67 0.67, 0.42, 1 0.67, 0.33, 1 1, 0.33, 0.67The ratio for offspring in a specific population is .45 Homozygous AA, .10 Heterozygous Aa, .45 Homozygous for aa. If the A gene is dominant orange and the a gene is recessive blue what is the phenotype ratio that will be observed from this population? T T T T Paragraph v 3 (12pt) 只i8公 Arial O S Mashups - 1 国曲田 田田 NTML Css Path: p Words:0 28 O stv MacBook Air 80 DI esc F1 F2 F3 F4 F5 F7 FB F9 F10 ! @ #3 $ & 一 2 3 4 5 6 7 8. Q W R Y U P tab A S F G J L aps lock > Z C V M ft fn control option command command opt V - * 00 B1.: Male side-blotched lizards display throat color polymorphisms; some males have orange throats, some have yellow throat stripes, and some have blue throats. The following table gives genotypes observed in a California population in 1993. Genotype Individuals 2 10 oy ob 14 yy 32 yb bb 42 Please calculate: a) The allele frequencies. b) The observed heterozygosity. Note that you have more than one type of heterozygote at this locus. c) The expected heterozygosity.
- 29. Which of the following "range of phenotype" graphs best captures this story: a species of beetle has small, medium, and large body sizes; the small beetles are able to hide well from the birds preying on them, and the large beetles put up a fight against the small birds preying on them; this leaves the medium ones to be preyed on more. 45 2.15 30 * 1 3 2)1, 45 135 1.30 95 B FREQUENCY Range of Phenotypes. FREQUENCY Range of Phenotypes 4- Phenotypes being selected FOR -Phenotypes being selected AGAINST C n Selection begins After selection4) In a certain population, 49% of the individuals show the recessive phenotype. In nine generations, what will the frequency of the homozygous dominant genotype be assuming that the population is in the HWE? 49 ndividuals1. In a population at Hardy-Weinberg equilibrium, 190 out of 1000 individuals have polydactyly. Note that the trait is dominant. (6 pts) a. What is the frequency of the dominant and recessive alleles? b. How many individuals in the population are expected to be heterozygotes? c. How many individuals in the population are expected to be homozygous dominant?
- 10) The following figure describes results from an experiment in which brood size in breeding European kestrels was manipulated. Which of the following statements are supported by these results? Flight (hours/day) Adult survival rate (%) 007 CO 10 3 cu 1 0 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 T 1 Female Question 10 options: • Male 2 3 4 5 6 Brood size (number of chicks) 1 7 Survival of adult males decreased with increasing brood size. Females spent more time foraging (measured as hours spent daily in flight) than did males. Brood size decreased with date (i.e., late season broods were smaller than early season broods).1. Fruit weight is controlled by 4 gene pairs. The homozygous dominant weighs 200 g while the homozygous recessive weighs 80 g. Assume that the alleles have equal contribution and have cumulative effects. The F1 and F2 of the two parents below were studied. Parent 1 Parent 2 BIBIB2B2B3B36464 х blbb262ьзьзв4B4 a. Compute for the frequencies of the different individuals in the F2. b. Provide the phenotypes of the F2 and their frequencies.1)A population of 500 individuals has 231 homozygous dominant individuals, 218 heterozygotes, and 51 homozygous recessive individuals. Determine the frequency of the recessive genotype and frequency of the recessive allele, respectively. a. Frequency of Recessive Genotype Frequency of Recessive Alleles 0.32 0.10 b. Frequency of Recessive Genotype Frequency of Recessive Alleles 0.10 0.32 c. Frequency of Recessive Genotype Frequency of Recessive Alleles 0.90 0.10 d. Frequency of Recessive Genotype Frequency of Recessive Alleles 0.68 0.32 2)A rabbit warren has 300 individuals. The coat colour of rabbits is expressed through incomplete dominance. The coat colour can be dark brown, light brown, or white.There are 81 dark brown rabbits, 150 light brown rabbits, and 69 white rabbits. Assume that all of the conditions are met for a population in Hardy–Weinberg equilibrium.What is the light brown genotype frequency,…
