Question

Which stage of the meiotic prophase shows terminalization of chiasmata as its distinctive feature?

• A. Lepotene
• B. Zygotene
• C. Pachytene
• D. Diakinesis

Answer 1

The correct option is D

Diakinesis

The correct option is D.

Explanation for the correct option:

Meiosis:

1. It is the reductional division occurring for the production of gametes.
2. It maintains the chromosome number in the coming generations.

Diakinesis:

1. It is the last step of prophase 1 of meiosis.
2. Terminalisation of chiasmata occurs.
3. During this stage, the chromosomes are in condensed form.

Explanation for the incorrect options

Option A

It is the first stage of prophase 1 marked by the beginning of chromosome condensation.

Option B

During this phase, the pairing of homologous chromosomes occurs.

Option C

During this phase, synapsis takes place followed by crossing over and recombination.

Final answer: Diakinesis stage of the meiotic prophase shows terminalisation of chiasmata as its distinctive feature