Question

In pachetyne stage of meiosis the chromosomes appear to be
a) single stranded
b) double stranded
c) tri( three) stranded
d) four stranded.

Answer 1

Answer:

Hence the answer is (d) four stranded

Explanation:

During pachytene stage, there is formation of recombination nodules between homologous chromosomes, each pair is called bivalent. Each homologue of a pair is actually composed of two sister chromatids and the pair is a tetrad of chromatids, i.e., four stranded.