What cells have the haploid number of chromosomes?

Answer 1

All the cells belong to skin,organs,e.t.c. undergo division by diploid and produce cells.but there are some organs which are formed by diploid process and further they undergo division by haploid process.

those are nothing but the cells which produce human male gametes and female gametes.for example;in case of male reproductive system,in the case of spermatogenesis;section of seminiferous tubule surrounded by basement membrane consists of compound epithelium which has 2 different types of cells.

sertoli cells{supporting cells} and spermatogenetic cells.{germ cells}

sertoli cells are large in size extend into lumen of tubules .germ cells are small in size remain on basement membrane.germ cells which are present very near to basement mem are called spermatogonia.this undergoes mitotic division and produces more no. of daughter cells.occasionally one of daughter cell produced will be pushed into lumen by unknown mechanism.this daughter cell undergoes development and enters division phase and is called primary spermatocyte.

this primary spermatocyte undergoes meotic division converts to secondary spermatocyte {haploid}.these undergo mitotic finally give rise to spermatids.these develop into spermatozoa by attaching to sertoli cells.

thus reproductive organs of both male and female undergo mieotic divisions and produce gamettes of them respectively.

Answer 2

Only gametes are haploid. In animals, the male gamete cells are sperm and the female gamete cells are eggs. These have only half the number of chromosomes of normal cells for a species.

Having a diploid number is normal for animal cells.

Answer 3

The nucleus contains DNA that contains chromosomes. The nucleus is in the middle of a cell. The body is composed of trillions of cells, each one of those cells contains a nucleus, and each nucleus contains DNA that contains chromosomes.

Answer 4

testis

ovaries

Answer 5

Ovary