if a cell normally has 12 chromosomes, how many dna molecules are present in metaphase of the cell cycle? remember that dna molecules are the same as chromatids.

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13-09-2022
Biology

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if a cell normally has 12 chromosomes, how many dna molecules are present in metaphase of the cell cycle? remember that dna molecules are the same as chromatids.

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Tutorconsortium349 Tutorconsortium349 · Answer 1 · 2022-09-15T19:29:43+02:00

A total of 12 DNA molecules are present in metaphase of the cell cycle.

Each chromosome has a single chromatid, which is made up of a single double-stranded DNA molecule, at the G1 phase of the cell cycle. Therefore, a cell with 12 chromosomes in its normal state will contain 12 DNA molecules in G1.

There are 12 chromosomes in the G1 phase. DNA doubles in size during the S phase of the cell cycle. The number of chromosomes does not change even while the number of chromatids doubles. The number of chromatids will be 24 and the number of chromosomes in the G2 phase will be the same as 12.

How many chromosomes are present in each mitotic stage?

chromosomes, 46

The cell contains two 46-chromosome groups when mitosis is finished, each encased in its own nuclear membrane. The cell then undergoes a process known as cytokinesis to divide into two identical copies, each of which has 46 monovalent chromosomes.

To learn more about chromosomes from given link

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