Red green color blindness is a sex linked trait which child...

Red-green color blindness is a sex-linked trait. Which child would be most likely to see color normally but also be a carrier of the recessive gene? a. A boy whose mother is colorblind b. A boy whose dad is colorblind c. A girl whose dad is colorblind d. A girl with both parents being colorblind e. Both A and D would be colorblind

Transcript

00:01 You know that to answer this question.

00:01 Let's talk about inheritance.

00:04 Here you have gray, green color blindness.

00:06 Okay, so for females, for females, you have that, when you have the homozybose dominant or the heterocygose, you're going to have normal vision.

00:25 And when you have the homozygobosized for a female, you have colorblindness, okay? for males, it is different because when you have this, you're going to have normal visions and when you have this you're going to have color bright so you have only two possibilities okay in this case it says in a family of two boys and two girls one of the boys and one of the girls are color bright so you have that one of the boys is like this and one of the girls is like this okay remember that that any organism or person in this case, inherit one allele from your parent.

01:15 In this case, you have here the parents, okay? x, x and x, y, the mother and the father.

01:24 Now, the y chromosome always comes from the father because mothers don't have a y chromosome.

01:29 So the y chromosome comes from the father, and it means that this x -ail is coming from the mother.

01:35 So the mother must have at least one recessive a little, like this.

01:40 Now, in case of the daughter, in this case, the daughter, has two excessive allele.

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