Unit 6 Genetics

Which of the following genotypes is homozygous dominant?

• A

• Aa

• AA

• aa

Which of the following genotypes is heterozygous?

• Bb

• BB

• bb

• B

Which of the following is homozygous recessive?

• Tt

• tt

• TT

• T

When one allele is not dominant over the other, resulting in both traits expressed in a heterozygous individual.....

• Incomplete Dominance

• Codominance

Some flowers are controlled by codominance. Red flowers (RR), blue flowers (BB) and Speckled flowers (RB). Cross a red flower with a speckled flower. What is the phenotypic ratio?

• 2 red, 2 speckled

• 2 red, 2 blue

• 2 blue, 2 speckled

Tags

NGSS.HS-LS3-3

This type of inheritance pattern is a MIXTURE of both traits.

• incomplete dominance

• co-dominance

• Mendelian dominance

• complete dominance

Incomplete dominance or co-dominance?
A calico cat shows both the traits for orange fur and black fur. 

• Incomplete Dominance

• Co-dominance

• Complete dominance

• Mendelian dominance

A man with type O blood is accused of being the father of a type B baby. The mother is type A. Could this man be the father?

• Yes

• No

• Maybe

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

If one parent has type AB blood and the other parent has type O, what is the percentage chance that they will have a child with type AB blood?

• 0%

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many alleles does a child get from each parent for a trait?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-LS3-1