Question

A cell finishing mitosis has __________ dna molecules, while a cell finishing dna replication has __________ dna molecules.

Answer 1

Answer:

A cell finishing mitosis has 46 dna molecules, while a cell finishing dna replication has 92 dna molecules.

Explanation:

Diploid cell initiates mitosis with 46 DNA molecules and 4C DNA content (each chromosome is formed by two DNA molecules joined by the centromere). With mitosis finished, daughter cells also have 46 DNA molecules, but a DNA content of 2C.

Already in DNA replication each DNA molecule will give rise to another molecule identical to it, so that at the end of replication the human cell will have 92 DNA molecules, and within that number, 46 chromosomes contain two DNA molecules, the sister chromatids. These cells remain diploid (2n), but with twice as much DNA.

Answer 2

Has normal (2n) amount of DNA;
Has twice (4n) the normal amount of DNA