Jose F.

asked • 12/11/12# How many chromosomes do humans have?

I want to know how many chromosomes humans have.

## 4 Answers By Expert Tutors

Christine M. answered • 09/26/19

Experience both in teaching and the real world.

Human beings have 23 pairs of chromosomes, since they are in pairs the total number of chromosomes is forty six. This is the normal number. There are individuals that unfortunately have extra copies of chromosomes but this leads to problems for the person, for example people with one extra chromosome on a pair of chromosomes making it a triplet (three chromosomes instead of two) have Down syndrome. Remember when cells divide the chromosomes split in half and replicate so each new cell has a complete set of twenty three chromosomes.

Kathy E. answered • 01/08/13

"Great Tutor with a Unique Sense of Teaching"

46.

Note that the size of an organism hasnothing to do with its chromosome number. (I find this interesting.) A shrimp has 254 and a horse has 66. Weird huh.....

Rupa B. answered • 12/11/12

Well qualified and experienced biology and chemistry tutor

Human have total 46 chromosomes i.e. 23 pairs. In males it is 22 pairs of autosomes +X and Y chromosomes and in females it is 22 pairs of autosomes + a pair of X chromosomes.

Roman C. answered • 12/11/12

Masters of Education Graduate with Mathematics Expertise

We have 46 chromosomes. They come as 23 pairs.

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Awesome G.

23 pairs09/17/19