Unit 6: Genetic Inheritance

Check all that is true of heterozygotes:

• Genotype Aa

• Displays the recessive trait

• Displays the dominant trait

• Have one dominant and one recessive allele

The image represents a cross between a heterozygous black guinea pig and a white guinea pig. What percentage of the offspring are white?

• 0%

• 100%

• 50%

• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A widow's peak is a dominant trait. Brad does not have a widow's peak even though both his parents do. What conclusion can be drawn?

• His parents are both homozygous recessive for the trait

• His parents are both heterozygous for the trait

• Brad is adopted, and does not have his parent's DNA

• His parents are both homozygous dominant for the trait

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Check all the traits that could be inherited.

• Height

• Hair color

• Intelligence

• Skin color

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

True or false: Your environment can influence the expression of your traits.

• True

• False

Tags

NGSS.HS-LS3-2

What is the genotype of a carrier for a genetic disease?

• AA

• Aa

• aa

A black cow and a white cow breed and produce grey offspring. What kind of inheritance is this?

• Incomplete dominance

• Codominance

• Sex-Linked

• Blood typing

A black cow and a white cow breed and produce black and white offspring. What kind of inheritance is this?

• Incomplete dominance

• Codominance

• Sex-Linked

• Blood typing

What type of blood do genotypes I^BI^B and I^Bi represent?

• Type O

• Type A

• Type B

• Type AB

Is it possible for a baby with blood type O to have a mother with blood type A and a father with blood type B?

• Yes, it is possible.

• No, it is not possible.

Tags

NGSS.HS-LS3-1