Why would you run a Chi-squared test? O To determine the expected results. O To determine if our data exactly matches the expected results. OTo determine if our data is consistent with expected results. OLFO compare the phenotypic ratios to the genotypic ratios.
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- Question 3. There are 100 students in a class. Ninety-six did well in the course whereas four blew it totally and received a grade of F. Sorry. In the highly unlikely event that these traits are genetic rather than environmental, if these traits involve dominant and recessive alleles, and if the four (4%) represent the frequency of the homozygous recessive condition, please calculate the following: A) The frequency of the recessive allele. B) The frequency of the dominant allele. C) The frequency of heterozygous individuals. Question 4 Within a population of butterflies, the colour brown (B) is dominant over the colour white (b). And, 40% of all butterflies are white. Given this simple information, which is something that is very likely to be on an exam, calculate the following: A) The percentage of butterflies in the population that are heterozygous. B) The frequency of homozygous dominant individuals. Question 5 A rather large population of organisms have 396 red-sided individuals…Question 8.In a population of 235 individuals, it was observed that 200 were found to be (AA), 30 were found to be (Aa), & 5 were found to be (aa). A) Find the expected number of individuals for each of the genotypes observed. B) Conduct a X2analysis to determine if the alleles (A) & (a) are in Hardy-Weinberg equilibrium (use the probability chart below) Hint: use the chi square formula and the table belowQuestion 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 2 A male hare with the genotype AaBb is crossed with a female hare with the genotype AABb. Use a Punnet square to determine the genotypes, phenotypes and proportions in the offspring. Show all your working. [17] A = black hair a = yellow hair B = brown eyes b = blue eyesQUESTION 23 Allele frequencies for eye color in a population of hippogriffs is p=0.73. How many individuals would you expect to be heterozygous in a population 150? (Assume HWE)QUESTION 29 You are interested in selecting for increased brain size in Fisher cardinals. You’ve chosen three traits that seem to correlate with brain size. a. Calculate the heritability of each trait (H2 = Vg/Vp). Trait: Vg Vp H2 Skull size 1.36 6.08 ______ Ability to find food 5.33 5.98 ______ b. For which of the following traits would there be a stronger correlation between parent and offspring?
- Question 4 Within a population of butterflies, the colour brown (B) is dominant over the colour white (b). And, 40% of all butterflies are white. Given this simple information, which is something that is very likely to be on an exam, calculate the following: A) The percentage of butterflies in the population that are heterozygous. B) The frequency of homozygous dominant individuals.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%. 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 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 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 notQUESTION 18 Describe: Population aging and increased longevity are creating more multi- and intergenerational families in the U.S. Give two examples of ways in which family structure and family roles are changing because of these changes.Question 6 Albinism is caused by an autosomal recessive allele that interferes with skin pigmentation in mammals. Two normally pigmented human parents already have an albino boy. They plan to continue to have children until they get a girl. Some or all of this information is important for each of the questions below. a) What is the probability that their next child (currently unborn) will be a girl with albinism? Explain your reasoning. b) What is the probability their first female child will be albino? Explain your reasoning. c) The answer to part (b) is different (and, yes, the answer is different) from the answer to part (a). Explain why. (Hint: it has something to do with the underlined words.)