Genes and Traits Quiz

Can the male parent pass an allele for blue eyes to his children?

• Blue

• Occasionally

• Yes

• Brown

• Never

Brown eyes are dominant to blue eyes. The male parent is heterozygous for eye color and the female parent is homozygous recessive for eye color. What color are the female parent’s eyes?

• Blue

• Brown

• Yes

• Occasionally

• Never

Can the female parent pass an allele for brown eyes to her children?

• Yes

• Blue

• Brown

• Never

• Occasionally

Which section in the image provided is most directly involved in coding that leads to different traits in offspring?

• Gene

• Nucleus

• Chromosome

• Cell

What are these labeled structures on the diagram known as?

• Traits

• Chromosomes

• Alleles

• DNA

Which statement best explains the answer to Part A?

• A cross between two dominant parents will never have a chance of having a recessive offspring because dominant always wins over recessive traits.

• A cross between two recessive parents always results in recessive offspring because no dominant traits are present.

• A cross between two recessive parents can result in a dominant offspring because sometimes the dominant trait is hidden within generations.

• Most populations carry dominant traits.

How are genes different from DNA?

• DNA is found only in males, and genes are in both males and females.

• Genes are sections of DNA, and DNA is all genetic information.

• Genes are located in the nucleus, and DNA is located in the mitochondria.

• Genes are found in nonliving things, and DNA is found in living things.

The passage of genetic instructions from one generation to the next is known as

• Alleles

• Ancestry

• Heredity

• Variation

What color are the male parent’s eyes?

• Blue

• Never

• Occasionally

• Brown

• Yes

What is a gene?

• A bundle (like a hot dog bun) that the DNA is packed into

• something inside the nucleus

• a section/piece of DNA

• all of your DNA