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2. The color of goblins is inherited as a single co-dominant autosomal gene G; The data is from the Pine Barrens of New Jersey,

Orange Goblins (GG) 105

Blue Goblins ( Gg) 450

Green Goblins (gg) 45

Answer the following questions and show your work; you may have to scan your answers and save a pdf.

a.What is the gene frequency of the two alleles? Show your work.

b. What would be the genotypic and phenotypic frequencies in the next generation ( Generation1? Starting with Generation 0 }

c. Under Hardy-Weinberg equilibrium, what would be the allelic frequencies of G and g

in Generation 1

in Generation 2

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Related questions

Populations MM MN NN Total
African American 79 138 61 278
European Americans 1787 3039 1303 6129
Native Americans 123 72 10 205

a. (10pts) What genetic term can be used to describe the inheritance of the MN blood group?

b.(10pts) Describe the Hardy and Weinberg Equilibrium conditions and ultimate results

c. (40 pts) What are the gene frequencies and genotypic frequencies for all three populations?-(Hint: you will need this information for the prediction of the next generation).

d.(40 pts) Are there any of the three populations in the Hardy-Weinberg equilibrium? Show your work legibly: Hint: frequencies are essential Hint: observed and expected genotypic frequencies are necessary? Is there a statistical tool /method to support your argument?).

e. (30pts) If Native Americans were to marry of European Americans, what are the gene and genotypic frequencies among their progeny?

f. (20 pts) NON-MN blood group: Red-green colorblindness is a recessive sex-linked inherited trait, If the sexes have the following gene frequencies

Females Phenotype Males
.08 Normal .05
.02 Color-blind .02

What is the gene frequencies among the males ONLY in the next generation?

A bonus question(20pts) under what genetic conditions if two members of the AB blood group can the individuals have O blood type child?

1 A) Cystic Fibrosis is an autosomal recessive disease, 1 out of every 2500 individuals of Caucasian descent in the US have cystic fibrosis. What frequency of cystic fibrosis carriers would you expect in the Caucasian population of the US under Hardy Weinberg Equilibrium? Show your work. (1 pt)

1 B) You know that penguin tuxedo color is a classic Mendelian single-gene trait, the allele for black and white tux coloring (T) is dominant over gray and white tux coloring (t). In a population of penguins, there are 400 black and white tuxedoed penguins and 200 gray and white tuxedoed penguins.

(i) Which observed genotypic or allelic frequencies can be calculated from this scenario without assuming Hardy Weinberg Equilibrium? (1.5 pt)

(ii) In one to two sentences, explain why differences may arise between observed and expected genotype frequencies. (1 pt)

1 C) You are studying inheritance of external keratin features in a dinosaur. Analysis has found that the presence of feathers is due to codominance between the AS (scales) and AH (horns) alleles. In one generation of a population you find 78 scaled dinosaurs, 76 feathered dinosaurs, and 64 horned dinosaurs.

(i) What are the observed allele frequencies of AS and AH ? Use p for the frequency of AS and q for the frequency of AH . Show your work. (1.5 pt)

(ii) What are the observed genotypic frequencies? Show your work. (1 pt)

(iii) Given the allelic frequencies calculated above, what are the expected number of scaled, feathered, and horned dinosaurs in a population of the same size (218) under Hardy Weinberg Equilibrium? Show your work. (1.5 pt)

(iv) Use a chi-square test to examine whether the gene you are studying is under Hardy Weinberg Equilibrium in this population. Show your work. Do you accept or reject the null hypothesis? (2 pts)

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