Which of the following are shown on this diagram? 1. inheritance of traits 2. effect of the environment on traits 3. population changes due to selection ST 11.04 • 1978 • 1976 10.0- Midoffspring beak depth (mm)
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- Question 1.You have sampled a population in which you know that the percentage of the homozygous recessive genotype (aa) is 36%. Using that 36%, calculate the following: A) The frequency of the "aa" genotype. B) The frequency of the "a" allele. C) frequency of the a allele, then the frequency is 60%. Question 6A very large population of randomly-mating laboratory mice contains 35% white mice. White colouring is caused by the double recessive genotype, "aa". Calculate allelic and genotypic frequencies for this population. Question 7After graduation, you and 19 of your closest friends (lets say altogether 10 males and 10 females) charter a plane to go on a round-the-world tour. Unfortunately, you all crash land (safely) on a deserted island. No one finds you and you start a new population totally isolated from the rest of the world. Two of your friends carry (i.e. are heterozygous for) the recessive cystic fibrosis allele (c). Assuming that the frequency of this allele does not change as…Question 18 When fitness is lower at both extremes of phenotypic variation for a trait (e.g., the very largest and very smallest beaks in a bird population) than for the median value in a population, the predominant evolutionary force at work is called Group of answer choices Only 1 correct answer phenotypic selection stabilizing selection directional selection phenotypic choiceQuestion 1.You have sampled a population in which you know that the percentage of the homozygous recessive genotype (aa) is 36%. Using that 36%, calculate the following: A) The frequency of the "aa" genotype. B) The frequency of the "a" allele. C) frequency of the a allele, then the frequency is 60%. D) The frequency of the "A" allele. E) frequency of A is by definition equal to p, so the answer is 40%. F) The frequencies of the genotypes "AA" and "Aa." G)The frequencies of the two possible phenotypes if "A" is completely dominant over "a."
- QUESTION 26 When thinking about changes in allele frequencies over time, why do you care more about the effective population size rather than the census (total number of individuals) population size?Question 51 of 51 Click Submit to complete this assessment. Question 51 You have been doing extensive research for 30 years on the frequency of coat colors (black, gray, white) in a guinea pig population located in the Andes Mountains. You suspect that your guinea pig population is undergoing stabilizing selection. If this is the case, what would you expect to find when you graph your data? Select all that apply.A) Two peaks, one at each end of the graph.B) A graph with a single peak towards the far right.C) A graph with a single tall and narrow peak located in the center.D) A graph indicating gray guinea pigs have an advantage over black guinea pigs and white guinea pigs.E) A graph indicating that gray guinea pigs are being selected against.QUESTION 21 Which of the following can the results of a QTL tell you? a. The specific causative gene or genes underlying a trait you are studying. b. The heritability of your trait and how much the heritability is influenced by environment. c. Identify haplotypes associated with specific traits of interest in other populations. d. Identification of regions of the genome that are associated with a trait.
- QUESTION 3 Which of the following is a false statement about the Hardy-Weinberg Principle? a. It needs a large population b. No mutations or natural selection of an allele can occur c. It requires a random mating population. d. Migration is essential to maintain allelic frequencyQuestion 2. A widow's peak hairline is a dominant trait and a straight hairline is a recessive trait. What will be the genotypes and phenotypes of children of a homozygous dominant parent and a heterozygous parent? a) Construct a Punnett Square - List gametes in the area with the dashed line and the genotypes of the offspring in the area with the sold line. b) Genotypes of Children-c) Phenotypes of children-QUESTION 19 You used a QTL (locus A) to find the causal locus of a phenotype of interest (locus B). You know that there is selection on locus B in your population, but A is just a neutral marker you used in your QTL analysis. Under what conditions do you expect allele frequencies to change at locus A? a. It will change, but only when not in LD with B b. It will not change regardless of whether it is in LD with B or not c. It will change, but only when it is in LD with B d. It will change regardless of whether it is in LD with B or not
- QUESTION 8 Morphological differences are abundant among many species. We make assumptions about why adaptations exist, but to understand whether a specific trait is a adaptive and why, researchers must create experiments that have all the following, EXCEPT: a. replication of each treatment to ensure reliability of results. b. hypotheses that are testable and falsifiable. c. include control groups. d. exceedingly small sample sizes in each treatment group. e. experimental design that enables all full interpretation of differences.Question 5 A rather large population of organisms have 396 red-sided individuals and 557 tan-sided individuals. Assume that red is totally recessive. Please calculate the following: a) The allele frequencies of each allele b) The expected genotype frequencies. c) The number of heterozygous individuals that you would predict to be in this population. d) The expected phenotype frequencies. e) Conditions happen to be really good this year for breeding and next year there are 1,245 offspring. Assuming that all of the Hardy-Weinberg conditions are met, how many of these would you expect to be red-sided and how many tan-sided?QUESTION 8 In a certain population of rabbits, 25 new rabbits are born and five move into the population from surrounding areas during a single year. However, 10 rabbits die, and five leave the population during the same time frame. What is the population change for that year? a. 30 b. No change c. 15 d. 25 e. 10