HSA 2007 Biology Item 32
- CID
- CID0a2b8e3369570f89a143e767b4384bac
- itemNum
- 32
- initialLetter
- itemType
- BCR
- itemAnswerKey
- N/A
- itemMaxScorePoints
- 4
- origNum
- x
In humans, the allele for having a hairline with a widow’s peak (H) is dominant to having a straight hairline (h).
A woman that is homozygous dominant for having a widow’s peak and a man that is heterozygous for having a widow’s peak have a child. What is the probability that their child will have a widow’s peak? In your response, be sure to include
- a completed Punnett square
- the genotypes and phenotypes of the parents
- the possible genotypes and phenotypes of the child
- an explanation of how DNA determines a trait such as widow’s peak
Write your answer in your Answer Book.