Question

Which traits are controlled by many genes?

A. Widow's Peak and Height
B. Skin Color and Blood Type
C. Height and Skin Color
D. Blood Type and Widow's Peak

How is it possible for a person to have blood type AB?
A. Blood type is controlled by many genes
B. The Alleles for blood type A and B are codominant
C. The Alleles for blood types A and B are recessive
D. The Gene for blood type has multiple alleles

Blood type is controlled by the alleles ia, ib, and i, which is an example of _____.
A. Multiple Alleles
B. Multiple Genes
C. Phenotypes
D. Genotypes

Which will have only two possible phenotypes?
A. a gene will one dominant and one recessive allele
B. a gene with multiple alleles
C. a gene with two recessive
D. a gene with two codominant alleles

Traits that have an enormous variety of phenotypes are controlled by
A. two codominant alleles on a single gene
B. multiple genes acting together as a group
C. a gene with one dominant and one recessive allele
D. a gene with multiple alleles​

Answer 1

Traits such as widow's peak, height, skin color, and blood type are controlled by multiple genes or alleles.

Step-by-step explanation:

Multiple genes control traits such as widow's peak, height, skin color, and blood type. Widow's peak and height are controlled by multiple genes, while skin color and blood type are determined by multiple alleles of a single gene.

For blood type AB, the alleles for blood type A and B are codominant, meaning both alleles are expressed equally. This results in an individual having type AB blood.

Having multiple alleles for blood type, such as the ia, ib, and i alleles, is an example of multiple alleles as it produces different blood types in the population.