10 genetic questions.
Please answer the following 10 questions below about human genetics.
Achondroplasia (dwarfism) is an autosomal dominant disorder.A dwarf mother and a dwarf father have 4 children. The first 2 are dwarfs, and the last 2 are of normal height.
1)What are the chances of a non-dwarf child from this union?
2)What is the mother’s genotype?
3)What is the father’s genotype?
Color-blindness is a sex-linked recessive disorder.A heterozygous female mates with a male with a colorblind male.
4)What are the chances of this couple having a child who is color-blind?
5)What are the chances of this couple having a girl who is color-blind?
6)What are the chances of this couple having a boy who is color-blind?
The ability to roll your tongue and having freckles are both autosomal dominant traits.A woman who cannot roll her tongue, and is heterozygous for having freckles mates with a man who is homozygous dominant for both traits.
7)What are the chances of this couple having a child who is homozygous dominant for both traits?
8)Heterozygous for both traits?
9)Homozygous recessive for both traits?
10)Heterozygous for one of the 2 traits?
Click on post comments to answer.