Sentences with phrase «egg and sperm production»

Mismatched recombination sites can hold up egg and sperm production, leaving hybrids infertile.

While cosmic rays are thought to be one source of mutations, DNA - copying errors during egg and sperm production may be a more common cause.

Not exact matches

Research suggests that an increase in scrotal temperature may lower sperm production and possibly affect the ability of the sperm to fertilize an egg.

He determined that one component of the sex - determination system, a protein called MAP kinase, proved to be the link between the fatty acid monitoring and the switch from production of sperm to eggs.

And the changes are handed down: While most of the chimp genome's 24 pairs of chromosomes undergo a genetic reshuffling during the production of sperm and eggs, with genes swapped between the two copies, there is only one Y chromosome and thus no mixing — the Y is transmitted intaAnd the changes are handed down: While most of the chimp genome's 24 pairs of chromosomes undergo a genetic reshuffling during the production of sperm and eggs, with genes swapped between the two copies, there is only one Y chromosome and thus no mixing — the Y is transmitted intaand eggs, with genes swapped between the two copies, there is only one Y chromosome and thus no mixing — the Y is transmitted intaand thus no mixing — the Y is transmitted intact.

But it turns out to be tougher to shut down sperm production — there are so many, and they move so quickly — than to derail just one big egg every 28 days or so.

Geneticists have identified an enzyme which regulates the production of sperm and egg cells in human reproduction.

Such women are given hormone treatments to stimulate the production of eggs, which are then removed and fertilised with sperm in a lab.

Errors in this recombination process during the production of sperm or egg cells underlie a variety of chromosomal abnormalities and can cause deletions of regions of the genome, miscarriage, or genetic disorders such as Down syndrome.

Sex - specific traits that lead to the production of dimorphic gametes, sperm in males and eggs in females, are fundamental for sexual reproduction and accordingly widespread among animals.

stimulating production of thick cervical mucus, which prevents sperm survival and ability to travel to a ripe egg in the fallopian tube in the event that ovulation does occur;

If your evolutionarily - selected biology thinks it's the right moment, health and food availability wise, for you to have children, it will promote libido, sperm production, and egg production all at the same time.

Follicle Stimulating Hormone (FSH)-- FSH stimulates the production of eggs and sperm and is often measured to evaluate infertility, abnormal menstruation, and is an indicator of menopause.

It includes foods which are dense in specific nutrients needed for hormonal function, production and balance, fetal development, egg health, sperm health, blood health and much more.