Genetics.
In certain pea plants, the allele for tallness (T) dominates over the allele for shortness (s), and the allele for purple flowers (p) dominates over the allele for white flowers (w) see Exercise 13). According to the principle of independent assortment alleles for the two characteristics (flower color and height) are chosen independently of each other.
a) A (TT, PP) plant is crossed with a (ss, ww) plant. What will the offspring look like?
b) The offspring in part a) is self-fertilized, that is, crossed with itself. Write the possible genetic combination (of flower color and height) that the offspring of this fertilization can have, and find the chance with which each such combination occurs,
c) Ten (Ts, Pw) plants are self-fertilized, each producing a new plant. Find the chance that at least 2 of the new plants are tall with purple flowers.