Cells of the body that contain two sets of chromosomes are called diploid. Meanwhile, germ line cells, which go on to produce egg or sperm cells, are called haploid because they contain half the ...

Save guides, add subjects and pick up where you left off with your BBC account. All eggs contain one X chromosome. Half of sperm contain one X chromosome and half contain one Y chromosome.

The nucleus of a germline stem cell undergoes two divisions, firstly separating homologous chromosomes and secondly separating chromatids. Haploid gametes contain 23 single chromosomes.

Reproduction in animals varies from species to species. Some types of reproduction, like parthenogenesis, are more unusual ...

Flow cytometry and genetic analysis confirmed haploid seed formation. Tissue culture and chromosome doubling techniques were applied to regenerate fertile, doubled haploid plants. Formation of ...

During meiosis, the pairs of homologous chromosome are divided in half to form haploid cells, and this separation, or assortment, of homologous chromosomes is random. This means that all of the ...

but differences are not sufficient so that individual chromosomes may be recognized with certainty. 5. The number of bivalents in prophases of microsporogenesis and the haploid number of chromosomes ...

Researchers have created mouse embryonic stem cells that contain only one set of chromosomes, rather than two ... so when you’re now dealing with a haploid genome it significantly improves the ability ...

The protocols describe in detail all steps of DH production- from donor plant growth conditions, through in vitro procedures, media composition and preparation, to regeneration of haploid plants and ...