Question

Plant cell has 12 chromosomes at the end of mitosis how many chromosomes would it have in the g2 phase of its next cell cycle

Answer 1

The chromosome number does not change in the interphase of cell cycle. So, the G2 phase will have 12 chromosomes.

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Answer 2

Answer:

The plant cell will contain 12 chromosomes after G₂ phase of the next  cell cycle.

In a cell cycle, DNA synthesis takes place only in S phase. After this phase, the DNA content doubles but the number of chromosomes remains the same.

It is accomplished by formation of the sister chromatids of the chromosome. Hence, after S phase the DNA content and number of chromatids double but the number of chromosomes remains the same i.e. 2n or 12 in this case.