|
Genetics: Probability - waliid
|
02-13-2007, 12:48 PM
Two American Black individuals come to you for genetic counseling and are concerned about their risks of having children with Sickle Cell disease. They know that the risk of being a carrier in that population is one in ten. Which ONE of the following most closely approximates their risk for having a child with Sickle Cell disease?
A) 0 B) 1 in 4 C) 1 in 100 D) 1 in 400 E) 1 in 2500
02-13-2007, 01:29 PM
Think this way:
They know that the risk of being a carrier in that population is one in ten. So both the couple are carrier, risk is 1/10 * 1/10=1/100 Aa x Aa=AA, Aa, Aa, aa, so risk of producing an aa is 1/4 1/100 * 1/4=1/400
02-13-2007, 01:43 PM
danille, thanks for explanation, you are in good shape , I sow some explanations in step2 forum too, are u done with step1 or planing for both?
Thanks again waliid for genetic party
02-13-2007, 01:48 PM
I am taking step 3 in less than 2 weeks, Saonew. I love genetics Qs.
02-13-2007, 01:54 PM
great, so you are done with step1 and 2, Good luck for step3.
|
| « Next Oldest | Next Newest » |
