Biology, asked by Vinuvichu, 1 year ago

What is the steps of reproduction in humans

Answers

Answered by Mann02
2
Hi friend

Humans reproduce by sexual intercourse, when the male penis is inserted into the female vagina until the male reaches sexual climax and ejaculates, which releases sperm into the vagina to fertilize the egg.

Approximately once a month, a woman's ovaries release an eggthat travels down the Fallopian tubes. Upon male ejaculation during intercourse, millions of sperm travel into a woman's vagina and up the birth canal. If an egg has been released from the ovaries and is accessible bythe sperm, then only one sperm can enter the egg. If this occurs, the egg creates a protein shield to kill any other sperm that try to enter.

Meiosis

Once the sperm has introduced its genetic material into the egg, the new cell can begin meiosis. Meiosis occurs when the zygote--the fused egg and sperm--splits its chromosomes and rearranges them to create a new genetic pattern. Humans normally have 46 chromosomes; the sperm and egg each contribute 23 chromosomes to form a complete set.

Gestation

At the end of the first week after fertilization, the blastocystmigrates to the uterus and attaches itself to the endometrial lining, which later becomes the placenta. The placenta begins to form when aportion of the endometrial lining inside the uterus thickens.


And at last Whatever the mother eats, the developing fetus also receives a portion of. This also applies to drugs, alcohol and tobacco, which is why doctors discourage drug use during pregnancy, as it can cause birthdefects and malnourishment in the fetus.The ideal period of gestation is 40 weeks. During this time, the fetus develops the body systems necessary to survive on its own.


Mark the brainliest please.

Regards,
Mann02
Ambitous
Similar questions