The woman in Problem 24 has had two miscarriages. She has come to you, an established genetic counselor, with these questions:
Is there a genetic explanation of her frequent miscarriages?
Should she abandon her attempts to have a child of her own?
If not, what is the chance that she could have a normal child? Provide an informed response to her concerns.

Question

The woman in Problem 24 has had two miscarriages. She has come to you, an established genetic counselor, with these questions:

Is there a genetic explanation of her frequent miscarriages?

Should she abandon her attempts to have a child of her own?

If not, what is the chance that she could have a normal child? Provide an informed response to her concerns.

Accepted Answer

Hello everyone. Let's look at our next problem. It says An individual with an extra copy of chromosome 21 can have a condition called, Well, an extra copy of chromosome 21. Trisomy 21 is the cause of Choice D. Down syndrome. So that's our correct answer. But let's look through other answer choices to understand why they're not correct, says Mona's army. This would be having a single copy of a chromosome rather than one copy from each parent. I'm an example of monogamy is Turner syndrome, in which case an individual has just a single X chromosome instead of having the X. X. Genotype. So we'll say X0 here. But that's not trisomy 21. So not our answer. Choice B is Edwards syndrome. Edwards syndrome is a trisomy but it's trisomy 18 having an extra copy of chromosome 18 and it is pretty much inevitably fatal, usually shortly after birth or very early in life. But that's not what we're looking for. So incorrect. And finally, Choice C. Turner syndrome. As we discussed earlier, Turner syndrome is imminent. Individual has just a single copy of the X chromosome but it's still a typically female. But Choice C. Is not our answer. An individual with an extra copy of chromosome 21 can have a condition called choice. The down syndrome. See you in the next video

Verified video answer for a similar problem:

Key Concepts

Genetic Causes of Miscarriage

Genetic Counseling and Risk Assessment

Probability of Having a Normal Child After Miscarriages