Chromosome Number and DNA Content

How many chromosomes are in a human diploid cell before S phase

46 chromosomes, (2n=46), with (2C) DNA content.

What is the state of a human cell after S phase

46 chromosomes, (2n=46), and (4C) DNA content; each chromosome has two sister chromatids.

Does chromosome number double during S phase

No, DNA is replicated, but chromosome number remains 46 in a human cell.

What is the chromosome number of a human haploid cell

23 chromosomes, so (n=23).

What is the DNA content of a human cell after mitosis

Each daughter cell has 46 chromosomes and (2C) DNA content.

What is the DNA content of each cell after meiosis I in humans

23 chromosomes, each still duplicated, and (2C) DNA content.

What is the DNA content of each product after meiosis II in humans

23 chromosomes with unduplicated DNA and (1C) DNA content.

What does (2n=46,\ 2C) mean

A diploid human cell with 46 unreplicated chromosomes and (2C) DNA content.

What does (2n=46,\ 4C) mean

A diploid human cell with 46 replicated chromosomes, each consisting of two sister chromatids.

What does (n=23,\ 2C) mean

A haploid human cell with 23 duplicated chromosomes after meiosis I.

What does (n=23,\ 1C) mean

A haploid human cell with 23 unreplicated chromosomes after meiosis II.

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