Question

1) Choose the best answer.

A(n) ___ is a trait controlled by many (poly) genes.

polygenic trait

pleiotropy

inherited trait

physical trait

2) Choose the best answer.

Human skin color is the result of this complex inheritance called ___.

pleiotropy

intermediate expression

plasmid

polygenic trait

3) Choose the best answer.

When you cross a red primrose with a white primrose, the resulting offspring will be pink. Pink is a(n) ___ between the red and the white flower color.

modifying gene

intermediate expression

incomplete penetrance

regulating gene

4) Choose the best answer.

___ refers to a relationship between two alleles of a gene. It occurs when the contributors of both alleles (genes) are clearly visible and do not overpower each other in the phenotype.

Pleiotropy

Triploidy

Polyploidy

Codominance

5) Select 2 that apply.

The human blood type is an example of the expression of ___ and ___ in complex inheritance.

incomplete penetrance

codon

multiple-allele series

polygenic trait

codominance

Answer 1

1) polygenic trait

2) polygenic trait

3) intermediate expression

4) Codominance

5) multiple-allele series and codominance