The common garden pea (Pisum sp.) can have green or yellow pea pods. Green peas are either homozygous dominant or heterozygous, while yellow peas are homozygous recessive. In a population of 500, there are 150 yellow individuals. Calculate q, p, p^2, 2pq, q^2.Then determine the number of mottled and orange individuals in the population. Select all the answer below that are correct. Note p2 and p^2 are equivalent notation.

Discuss the difference in the number of generations it took for your alleles to be fixed when you were selecting for round peas vs wrinkled peas. Which took more generations? How big was the difference? What do you think is the reason for this difference?  find the answer on the website for how many generations it took? http://www.evo-ed.org/Pages/Peas/Farming/Farming.html

Imagine that you have a test population of birds. You know from your previous research that there are two alleles (at the same locus) that govern feather type. Genotypes, and their associated phenotypes, are as follows: RR Red feathers Rr Red feathers rr white feathers Observing your population, you determine that you have 500 chickens with white feathers and 600 chickens with Red feathers. Based on Hardy–Weinberg expectations, how many of these are likely to be heterozygotes? (Show all  your work)

Imagine you cross two closely related plant varieties: Maize and teosinte. You hypothesize that different alleles at just 5 genes are responsible for all the trait differences between the two plants. You take two inbred parent lines and cross them together to produce an F1 and then cross two F1 individuals together to produce F2 offspring. What proportion of the offspring do you expect to look exactly like each of the parent lines if your hypothesis is correct? Please show work using punnet squares.

In a population of millipedes, the gene “R” determines their color.  The color red is determined by the dominant “R” allele and the color orange is determined by the recessive “r” allele.  A population of 100 millipedes consists of the following genotypes:       30 RR     44 Rr     26 rr Answer the following - You can represent the ratio/frequency as a fraction or a %. A. What is the genotypic ratio of this population of millipedes? B. What is the phenotypic ratio of this population of millipedes? C. What are the allele frequencies for “R” and “r” in this population of millipedes?

What is the chi-square value of the pumpkin population? round up and use four decimal points After doing some crosses and genotyping some individuals, you determined that the number of individuals homozygous dominant for the largest pumpkin allele is 98, 80 are heterozygous for medium size, and 20 are homozygous recessive for small size.

In carnations, the red pigment (RR) is incompletely dominant to white (rr). The heterozygote (Rr) is pink. In a randomly mating field of carnations, 42 plants were red, 178 plants were pink, and 180 plants were white (total =400). What is the best estimate of the allele ferequency, for the red allele in this population?

The results of a test cross of a fruit fly that is heterozygous for three traits encoded by the genes E, D, and A summarized below. You can see numbers of offspring that inherited each combination of alleles from heterozygous parent. Use this data to calculate a frequency of recombinations and to make a map. 131 eda eDA 1779 Eda 1654 EdA 13 EDa 241 EDA 118 edA 252 eDa 9 total: 4197

Imagine that in squirrels, the gene for brown coat is coded by two alleles, D for dark brown and d for light brown. In a population of squirrels in Central Park, you identified 251 DD, 182 Dd , and 117 dd. What is the frequency of the light brown, d allele? Please use and round to four decimal points.

Assume a biallelic locus in a diploid population. Out of 100 individuals, the following genotypes were observed: 59 A1A1 individuals; 16 A1A2 individuals; and 25 A2A2 individuals. What is the observed (actual; not predicted) allele frequency of the A1 allele? (you may use a calculator here) O A. 0.33 O B. 0.67 O C. 0.16 O D.0.59 O E. 0.25