Chapter 10, Problem 6P

Summary Introduction

To review:

In the given question, it is asked to identify characteristics of homologous chromosomes synapsis which can be used to distinguish between two plant species. Plant species A (Diploid) possesses $\text{36}$ chromosomes and plant species B (Triploid) also possesses $\text{36}$ chromosomes.

Introduction:

Prophase-1 is a phase in the process of germ cell division (meiosis) in which duplicated chromosome gets condensed and aligns with their homologous chromosome. This pairing between two homologous partners is followed by a crossing over which results in genetic recombination (exchange of genetic material between pair of homologous chromosomes).

The organism which possesses a pair of homologous chromosomes in its somatic cell is termed as a diploid organism. Similarly, the organism possessing three homologous chromosomes in its somatic cell is termed as a triploid organism.