Answer to Question #214542 in Genetics for moe

Question

1. How many chromosomes are present in a diploid cell of a human?
2. How many of these chromosomes are autosomes and how many are sex chromosomes?
3. How many autosomes and sex chromosomes would a sperm have in its nucleus?

Answer 1

Humans have 46 chromosomes present in a diploid cell.

Among those, there are two sex-determining chromosomes,

And 22 pairs of autosomal, or non-sex, chromosomes.

The total number of chromosomes in diploid cells is described as 2n, which is twice the number of chromosomes in a haploid cell (n).