Chapter 5, Problem 5P

In tomato plants, purple leaf color is controlled by a dominant allele A, and green leaf by a recessive allele a. At another locus, hairy leaf H is dominant to hairless leaf h. The genes for leaf color and leaf texture are separated by $\text{16 m}\text{.u}\text{.}$ on chromosome $\text{5}$. On chromosome $\text{4}$, a gene controlling leaf shape has two alleles: a dominant allele C that produces cut-leaf shape and a recessive allele c that produces potato-shaped leaf.

The cross of a purple, hairy, cut plant heterozygous ateach gene to a green, hairless, potato plant produces thefollowing progeny:

$\begin{array}{cc}Phenotype& Frequency,\%\\ Purple,hairy,cut& 21\\ Purple,hairy,potato& 21\\ Green,hairless,cut& 21\\ Green,hairless,potato& 21\\ Purple,hairless,cut& 4\\ Purple,hairless,potato& 4\\ Green,hairy,cut& 4\\ Green,hairy,potato& 4\\ & 100\end{array}$

a. Give the genotypes of parental and progeny plants inthis experiment.

b. Fully explain the number and frequency of each phenotype class.