A widow's peak is a V-shaped area of the hairline in the center of the forehead. The allele for having a widow's peak is dominant to the allele for not having a widow's peak.

If two parents do not have widow's peaks, what is the probability that their child will have a widow's peak?
A. 50%
B. 25%
C. 75%
D. 0%

Question

A widow's peak is a V-shaped area of the hairline in the center of the forehead. The allele for having a widow's peak is dominant to the allele for not having a widow's peak.

If two parents do not have widow's peaks, what is the probability that their child will have a widow's peak?
	A.  	50%
	B.  	25%
	C.  	75%
	D.  	0%

cakt07 · Answer

@Destinymasha

anonymous · Answer

I'm thinking A, C. But I'm not sure.

shrutipande9 · Answer

@cakt07 ready to work out with me?

cakt07 · Answer

Lol WHUT?

cakt07 · Answer

work out? Nahhh already did my PE for today :)

shrutipande9 · Answer

i mean...solve d prob wid me?:P

cakt07 · Answer

OH!!! xD Yes

shrutipande9 · Answer

if we take d allele widow's peak as W and no peak as w
then can u tell me d  possible gentoypes

cakt07 · Answer

IM CONFUSED!

cakt07 · Answer

OHHHHHHHH since both parents dont have it then the child wont so like 0%?

shrutipande9 · Answer

ok then lets start from d beginning...genotype is made up of 2 letters....WW is homozygoues dominant (homo=same) Ww heterozygoues and ww is homozygous recessive.

shrutipande9 · Answer

actually ur answer is right but the explanation is wrong....if u want to learn how 0% i can help

cakt07 · Answer

ohhhhhhhh, i get it, since its the same which is ww, its homo ressicive so sinc eparents are the same the child wont have it?

cakt07 · Answer

Can you help me with a few more questions @shrutipande9

shrutipande9 · Answer

sure....and u sure u wanna skip dis ques and go ahead?

cakt07 · Answer

yes

cakt07 · Answer

ill send it to you in pm :)