A human body has cell contains 46 chromosomes.How many chromosomes would a human egg cell (unfertilized) have?

Question

need help im doing a reasearch paper...heres the full question........a human body has cell contains 46 chromosomes.How many chromosomes would a human egg cell (unfertilized) contain?

Answer 1

23

Answer 2

23

Answer 3

23

Answer 4

23

Answer 5

The human unfertilized egg cell contains 46 chromosome before fertilization by a haploid sperm cell.

("As is the case in most mammals, the secondary oocyte is triggered to undergo and complete division II of meiosis "only" if it is fertilized by a sperm."

"These induced primary oocytes complete meiotic division 1 to form a small (first) polar body and a large secondary oocyte; this secondary oocyte subsequently undergoes meiotic division 2 to form a second small polar body and a large mature ovum. ....")

Activation (fertilization) by the sperm cell triggers the completion of the meiotic division 2 where the then diploid ovum nuclei forms the second haploid polar body which is lost at the surface of the egg cell. Only then is the egg ready for its haploid genome to fuse with that of the sperm DNA.


See: Molecular Biology of THE CELL
by Bruce Alberts, Dennis Bray, Julian Lewis, Martin Raff, Keith Roberts, James D. Watson.

ISBN: 0-8240-7282-0

Answer 6

the egg has 23, and the sperm has 23
23+23=46

Answer 7

none of these people answered right :( sperm and egg have 23---because if you pair an egg and a sperm to make an offspring you get 46 which is the right number. daughter cell from MITOSIS has 46 -- that's a body cell daughter cell from MEIOSIS II has 23 -- that's a sperm or egg

Answer 8

half of 46