GrumpCat8491
09.09.2019 •
Biology
Atypical g1 nucleus is 2n and contains 2c (two complements) of dna. which of the following is true? a typical g1 nucleus is 2n and contains 2c (two complements) of dna. which of the following is true? a prophase cell is 4n and contains 4c of dna. a cell in prophase is 2n and contains 2n of dna. a cell in prophase is 2n and contains 4c of dna. a cell in metaphase is 2n and contains 2c of dna. a cell in g2 is 4n and contains 2c of dna. submitr
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Ответ:
A cell in prophase is 2n and contains 4C of DNA
Explanation:
According to the given information, the cell in G1 has 2n (two complete sets of the chromosomes) and 2C of the DNA.
DNA replication in the S phase would double the DNA content from 2C to 4C. However, the S phase does not double the number of chromosomes. Each chromosome has two sister chromatids to accommodate the newly formed DNA. So, the total number of chromosomes remains the same as it was in the G1 phase, that is, 2n.
The cell would enter the G2 phase and then prophase. Both of these stages do not change DNA and chromosome number. Hence, the cell in prophase would have 4C DNA and 2n chromosomes.
Ответ:
Provide an image with the question please.
Explanation: