Asexual whiptails have a special trick for making spermless reproduction work: The egg cells in other animals first double their choromosomes once and then divide twice, leaving
them as haploid cells, with half the normal number of genetic material.
Not exact matches
By eliminating p53,
as this study demonstrates,
haploid cells are able to survive.
spermatozoa), and more commonly known
as a sperm
cell, is the
haploid cell that is the male gamete.
«In mammals, in the absence of
haploid cells, other approaches have been used to identify key genes, such
as interfering RNA, but they are sub-optimal methods.
In contrast to the
cells in the rest of the body, sex
cells hold half the number of chromosomes (they are
haploid)
as a result of this special kind of
cell division.
In addition,
as a previous study showed that the SXI2a homeodomain factor gene is sufficient to drive sexual development of
haploid α
cells [56], we introduced the SXI2a gene into strain XL280α to mimic a-α sexual reproduction, generating strain MN140.23 (Figure S13).