Question

For mitosis, the chromosomes of cell duplicate during interphase. When do the chromosomes duplicates for meiosis?
a) Before meiosis I.
b) Before meiosis II.
c) During meiosis I.
d) Do not duplicate​

Answer 1

a) before meiosis I !!!!!!!!

Answer 2

Answer:

• The correct answer is option B
• Chromosome duplicate before meiosis l in interphase.

Explanation:

Meiosis is the reductional division that usually occurs during gamete formation.

Meiosis occurs in ll phases and is preceded by Interphase

Interphase is divided into three phases:

1. G1 phase- This is a growth phase for cells, DNA does not replicate in this phase however the cell is metabolically active.
2. S phase- DNA replication takes place during the S phase and parental chromosome replicates produce identical sister chromatids.
3. G2 phase cell growth continues in this phase and protein synthesis takes place.

After the G2 phase Meiosis I starts and then meiosis ll occurs. Certain cells which do not divide further enter the quiescent stage where the cell is metabolically active but does not divide.