Nondisjunction that leads to problems in offspring can occur in: a. mitosis b. meiosis I only c. meiosis I and II d. mitosis, meiosis I, and meiosis II

Video transcript

Hi everyone. Here's our next question. It says Non disjunction during mitosis. one m aosis to results in blank cells. Let's recall that mitosis. One of mitosis to is that process of sexual reproduction That leads to four Hap Lloyd daughter cells at the end and non destruction is when the chromosomes fail to separate during cell division. With the result that some daughter cells end up with too many chromosomes and some with too few. And the result when you have a daughter cell with an abnormal number of chromosomes either too many or too few is called an employee. So we look over at our answer choices. We see that choice B is an employed so that's gonna be our correct answer. Meanwhile we'll just take a look at our other answers. Choice A says deployed. Well uh manoa sis one of my bosses too are going to result in hap Lloyd daughter cells and a failure to separate. Will not and will not give a regular result of deployed cells. That's in mitosis. You'd expect deployed daughter cells. So that's not a correct answer. Choice B as we said is correct. Choice C. Is happy Lloyd. Well, normal mitosis is going to produce happily daughter cells but in this case we have what's the result after those chromosomes have failed to separate after non disjunction. So we wouldn't expect to see our normal Happy Lloyd cells. So that's not a correct answer. Choice D is polyp Lloyd. Well polyp Lloyd means having more than two complete sets of chromosomes. So example would be the end of sperm and a seed which has which is trip Lloyd. But again, we're not going to see multiple complete sets of chromosomes. We're going to see sort of this uneven result some cells with too many and some with too few. So Choice D is not a correct answer. And when we have this annual party occur can lead to very serious consequences. Genetic disorders, many of which are fatal. Um some we have trisomy 21 is an example of genetic disorder that is not fatal um as the result of having three copies of chromosome 21. Um but sometimes that can lead to cell death or fatal genetic disorder. So that's the consequence of that non disjunction. So again, non disjunction during mitosis one and may assist to results in Choice B and deployed cells. See you in the next video.