Why is secondary spermatocyte a haploid cell?

[sameeralord]

Hello everyone,

Ok I know it has 23 chromosomes. But they are double structured chromosomes, so can you still call them haploid. Also spermatids, can you call them haploid cells. You can't right because they haven't matured.

[Jack the Stri]

What do you mean by "double structured"? Whether or not cells have matured doesn't matter, if they have 1 copy of each chromosome that makes them haploid, per definition.

[sameeralord]

What do you mean by "double structured"? Whether or not cells have matured doesn't matter, if they have 1 copy of each chromosome that makes them haploid, per definition.

http://upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Meiosis_Overview.svg/300px-

Daugher nuclei, here is a secondary spermatocyte, if you consider this as spermatogenesis. They are double structured chromosmes (consisting of chromatids). I know every chromosme has chromatids when they undergo meiosis and mitosis, but these cells have them even without undergoing it. Well they are undergoing but you see what I mean. I'm not saying you are wrong.