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Interphase

During meiosi...

Question

During meiosis, replication of DNA occurs in

A

S-phase

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B

S-phase and zygotene

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C

S-phase and leptotene

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D

All the above

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Solution

The correct option is D S-phase
S phase is recognised by the synthesis of DNA. It doubles the DNA content of the cell and occurs between G $_{1}$ and G $_{2}$ phase. Zygotene and Leptotene are the stages of prophase I and are associated with crossing-over and recombination.
So, the correct answer is 'S-phase'.

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Similar questions

Q. DNA replication occurs in which phase of cell cycle?

The replication of DNA takes place during which phase

(I) Mitosis
(II) G

_{1}

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(III) S phase

Q. Genetic recombination occurs during _______ phase of meiosis.

Q. Meiosis occurs only during the reproductive phase.

Q. Which one is CORRECT about s-phase (synthetic phase)?
I. It occurs between

G_{1}

G_{2}

II. It marks the period during which DNA replicates
III. At the end of this phase DNA is doubled but the number of chromosomes remains unchanged
IV As the DNA is doubled in this phase number of chromosomes is also doubled
V. Centrioles replicate in this phase

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