Cell Cycle And Cell Division Question 73

Question: Choose the event of cell cycle which shows the importance of synapsis and the formation of chiasmata.

Options:

A) An increase in the variation of progeny occurs.

B) Reciprocal exchange of chromosomal sections occurs.

C) The DNA on homologous chromosomes mix.

D) All of the above

Show Answer

Answer:

Correct Answer: D

Solution:

[d] Synapsis is the pairing of homologous chromosomes during meiosis.

While autosomes undergo synapsis during meiosis, sex chromosomes often remain unpaired.

A consequence of recombinant synapsis is to increase genetic variability within both the offsprings and population.