If the initial allele frequencies are p = 0.5 and q = 0.5 and allele a is a lethal recessive, what will be the frequencies after 25 generations? 9g =90/(1+gq o) 91 = 0.5/(1+1* 0.5) = 0.333 9 25 = 0.5/(1+25* 0.5) = 0.037 0.250 0.037 0.667 0.333 In some cultures, it is/was very common for a woman to marry her mother's brother. What is the coefficient of inbreeding for their children? Draw the pedigree to show your work.

In a Gecko population a group of Geckos skin color is controlled by one gene with two alleles "R"which codes for red and is dominant to "r" which codes for yellow and is recessive. If 100 Geckos are on the island and you gene test them to know their alleles you'll observe that 30 are homozygous red, 60 are heterozygous red, and 20 are homozygous recessive. Determine the Chi-square. assuming the original parents (Rr xRr).* Hint: determine the expected first before plugging into the equation awesome as this one? REGISTER NOW 13 5 11 4 D

Calculate allele frequencies for the allele that either prevents or permits “tongue rolling,” based on a human breeding population of 500,000 in the San Jose region. Typical 1407 class phenotypic data suggests the following genotypic frequencies present in this population:   Frequency of homozygous dominants (RR, the tongue rollers): 0.20 (20%) Frequency of homozygous recessives (rr, the non-rollers): 0.30 (30%) Frequency of heterozygous individuals (Rr, phenotypically tongue rollers): 0.50 (50%)   Total No. of alleles present: _____________   Number of dominant alleles possessed by homozygous dominants: _____________   Number of recessive alleles possessed by homozygous recessives: _____________   Number of dominant alleles possessed by heterozygotes: _____________   Number of recessive alleles possessed by heterozygotes: _____________   Total number of dominant alleles in the population: _____________   Frequency of the dominant allele (R) in the population: _____________   Frequency…

The recessive allele that causes Ellis– van Creveld syndrome when homozygous has a frequency of about 0.07 in the Amish population of Pennsylvania, although its frequency is only about 0.001 in the generalpopulation. How many persons out of one thousand in the Amish population would be expected to have the disease? How many out of one million in the general population?