Genes a, b, and c are known to be in that linear order in an organism. A testcross is done that yields 20 double crossover progeny out of a total of 1000 offspring. Assume that there is no interference. (a) Type a genetic map showing the distances between these genes. […]

consider another cross involving the genes for seed color andshape. as before , yellow is dominnant to green, adn smooth isdominant to wrinkled . A plant with smooth , yellow seeds iscrossed to a plant with wrinkled. green seeds. the peas producedare as follow 1/4 smooth yellow 1/4smooth green 1/4 […]

In a population of 100 individuals, the number of homozygous recessives is 4. Let’s assume that you can distinguish the heterozygotes from the homozygous dominants. There are 80 heterozygotes, and 16 homozygous dominants.b. What is the frequency of each allele?c. What would you estimate the allele & genotype frequencies to […]

There are two different species of single-cell organisms (each organism consists of only one cell) living in the same environment. The two are identical except that the members of one species are four times larger than the other species. Suddenly their environment becomes dramatically worse: the nutrients that each species […]