MIDTERMS Quiz1

Question 1

Which of the following describes an organism with two identical alleles for a particular trait?

Answer 1

Homozygous

Question 2

What type of inheritance occurs when one allele completely masks the effect of another allele?

Answer 2

Complete dominance

Question 3

In which scenario are both alleles equally expressed in the heterozygote?

Answer 3

Codominance

Question 4

What does a Punnett square predict?

Answer 4

Both genotypes and phenotypes of offspring

Question 5

Which of the following is an example of a polygenic trait?

Answer 5

Skin color in humans

Question 5

If a red flower (RR) and a white flower (rr) are crossed and all the offspring are pink, what type of inheritance is this?

Answer 5

Incomplete dominance

Question 6

What term describes a situation where one gene affects the expression of another gene at a different locus?

Answer 6

Epistasis

Question 7

Which of the following describes an organism with two different alleles for a particular trait?

Answer 7

Heterozygous

Question 8

Traits that are carried on the X chromosome are called what?

Answer 8

Sex-linked

Question 9

The study of heredity and the variation of inherited characteristics is known as what?

Answer 9

Genetics