A cross between two heterozygotes would produce what phenotypic ratio?
A cross between two heterozygotes would produce what phenotypic ratio?
Question 1 of 10
Sickle cell anemia is a recessive trait. A cross between two heterozygotes would produce what phenotypic ratio?
A. 1:2:1
B. 3:1
C. 2:2
D. 1:3
E. 4:0
Question 2 of 10
If genes are completely linked, all the offspring will be _________.
A. recessive
B. recombinants
C. parental
D. hybrids
E. dominant
Question 3 of 10
The allele for widows peak (H) is dominant for the allele for no widows peak (h). At a different gene locus, the allele for hitchhikers thumb (D) is dominant to the allele for non-hitchhikers thumb (d). A man is heterozygote for the traits and marries a woman who has no widows peak and is heterozygote for hitchhikers thumb. What is the man’s genotype?
A. HHDD