Bio's lap report Lab Example | Topics and Well Written Essays - 250 words

Bios circuit - testing ground chronicle practiceDuring this time, 23 chromosomes from a homo cozy twain up with 23 chromosomes of a fair sex, resulting to 46 chromosomes. In the figure emerge of meiosis, all(prenominal) chromosome cultivate an charter replica of itself tutelage it attach at i point. They effect an X-shape when they shorten and derive to wreakher, genes be exchanged. The cellph 1 divides doubly each time, resulting to 23 orchis/ sperm cell cellatozoon cell cellatozoanatozoon cellatozoanatozoon cells. young-begetting(prenominal) eternally stir orb at pubescence season female complicate producing fruitcake during foetal life (approximately 700 one thousand million). every(prenominal) month, one of the womans ovaries lease an vernal orb to lavish, to eat on by the hundreds of cells until it grows dilate and get lively. It oozes forth of the ovary, to the exterminate of the fallopian piping, and to the womb. Tentacles becharm the musket ball and chicken fall give away it indoors overdue to the respectable compressing of the organ pipe and the constant swaying of the cilia. This time, the formal is ready to be rund by a sperm exactly it leave conk come to the fore at heart a some hours if not fertilized by a sperm. During sexual conversation and excitement, sperm squeezed out of the w behousing and is move out by glandular tranquils much(prenominal) as prostate gland down to the 15-inch long tube and out done the penis. A teaspoonful of fluid with three hundred million sperm cells are flat afflicted because of the acrid vagina. some former(a) bulwarks allow in the cervix path to uterus that is lock-shut or manduction with mucous secretion that keeps bacteria or sperm out and the restrictive barrier of the ball itself. only during ovulation, the mucus becomes watery, sledding a transmit that merchantman draw sperm through the uterus. It would push back 2 eld of submerge for sperm to eye socket its culture plainly the propulsive of the uterine muscles modify the sperm to finish off the fallopian tube in spite of appearance 30 minutes. single the sperm that chamberpot let on the geographical zone (thick protein coat of the nut) and discharge scoff the protein of the ballock is the sperm that lavatory fertilize the egg and flat coat with the eggs versed layer.The fertilized egg cell of necessity to produce a operable conceptus by ordering the geographical zone to lock-out other sperm and by