Sperm and eggs in humans always                   . a. each have two copies of every gene; b. each have one copy of every gene; c. each contain either all recessive alleles or all dominant alleles; d. are genetically identical to all other sperm or eggs produced by that person; e. each contain all of the genetic information from their producer

Video transcript

Hi all let's look at our next question, what happens to the number of chromosomes in the germ cell after me Aosis. So let's just quickly recall from our contact videos, content, videos Aosis starts with a deployed parents. So and the deployed parent. The end result is for hap Lloyd daughter cells. And in a deployed cell we have two N chromosomes and half white cell. We have N. So after mitosis, the number of chromosomes is cut in half. So even if we don't remember how many chromosomes are in the human, um we have only two numbers in our possible answers and 46. So let's look at our answer choices. Choice a says it will increase from 23 to 46. Well that is not correct. After my Asus we see a decrease by half. So choice a is incorrect. Choice B says it will be doubled again that's incorrect choice. See it will decrease from 46 to 23. And in case we were worried that was the wrong number of chromosomes. If we didn't remember how many chromosomes the human had, we might just check out Choice D choice D. Says it will be multiplied by four. Again, that's obviously incorrect. So in case we were worried we had the number wrong. That points us back to choice. See it will decrease from 46 to and that's so that the number of chromosomes remains constant from parent to offspring from generation to generation because then the two to half Lloyd gametes will meet in fertilization resulting. And as I go, that's deployed has that same number of chromosomes as the parent. See you in the next video.