Q6 - How many individuals are heterozygous? How many are homozygous ? Q7 - What is the probability of grandparents 3 and 4 having nontaster offspring ? the Punnett square below) (Hint: Use

homozygous recessive: 3) Round seeds are dominant over wrinkled seeds in pea plants. Fill in the Punnett square and determine the expected genotypes and phenotypes of the F₁ generation by crossing homozygous recessive and heterozygous parents. J Possible genotypes of offspring: Possible phenotypes of offspring: Percentage of offspring that are round: % of offspring that are homozygous dominant: heterozygous: J j J j J j j J j J j Fi generation If there were 3500 seeds collected, predict how many would be round? Predict how many seeds would be homozygous dominant? homozygous recessive: % wrinkled: % % homozygous recessive: wrinkled? heterozygous? % %

Butterflies show 3 phenotypes due to incomplete dominance at the D locus with alleles DY and DB giving green phenotype in heterozygotes and yellow and blue in homozygotes a) A population of butterflies showed 49% yellow, and 51% blue and green. What percentage of the gametes for the next generation would contain the DB  allele? b) In another population only 1% of the butterflies are blue, What is the DY allele frequency? c) If the butterflies were subject to predation by birds that could easily detect blue & yellow individuals what effect would you expect this to have on the genotype and allele frequencies over time? Indicate possible percentages.

Both parents are dominate tall. What are the 4 possible offspring?

A homozygous mother with small ears (e) marries a heterozygous man with large ears (E).  Complete the Punnett square showing the off-spring possibilities. Complete the associated Punnett square information