“It's only a mature sperm that can fertilize an egg and eventually produce a baby.”
Vinay Tergaonkar
“So, unlike in humans, every chimp male's sperm has to fight really hard to fertilize a single egg.”
Jennifer Hughes
“The male function is to produce sperm. We now have sperm banks.”
Valerie Solanas
“The egg of every species of animal or plant carries a definite number of bodies called chromosomes. The sperm carries the same number. Consequently, when the sperm unites with the egg, the fertilized egg will contain the double number of chromosomes.”
Thomas Hunt Morgan
“The genes in the palindrome region are primarily sperm-producing genes, and most other genes unique to the Y aren't located there,”
“When we use fresh sperm, the surgical procedures for the sperm retrieval and egg retrieval need to be done the same day, and this may not be convenient for the couple. However, if we use frozen sperm, the man can have his procedure first, and if we find sperm, we can bank it. Then, at the couple's convenience we do egg retrieval and the fertilization procedure that puts the egg and sperm together. The model helps us know in advance when frozen sperm would allow for good results for that couple.”
Moshe Wald
“Sperm swim in the female reproductive tract for at least 15 minutes before they reach an egg. Ideally it should be taken just before sex, but it might be made to work after sex.”
David Clapham
