Chapter 12, Problem 9TYU

Summary Introduction

To determine:

The F2 plants of each of the four phenotypes. When two genes of a flower, one controlling blue (B) versus white (b) petals and the other controlling round (R) versus oval (r) stamens, are linked and are 10 map units apart. There is crossing of homozygous blue-oval plant with a homozygous white-round plant and 1000 F2 progeny are obtained.

Introduction:

During meiosis, when the there is an exchange of genetic material between the non-sister chromatids of homologous chromosomes is known as crossing over.