Nonmendelian Inheritance Quiz

Which type of inheritance causes both traits to be expressed equally in the heterozygote?

• Complete Dominance
• Incomplete Dominance
• Co-Dominance
• Sex-linked

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

Radish color is incomplete dominant, red and white are pure breeding colors. While heterozygous are purple.

Cros a red radish with a white.

• 4 purple

• 1 red, 2 purple, 1 white

• 2 red, 2 white

• 1 red, 1 purple, 2 white

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

• incomplete dominance
• co-dominance
• Mendelian dominance
• complete dominance

Hemophilia is a sex-linked recessive trait found on the x chromosome.  Complete a cross between a woman who is a carrier and a man who is normal.
What are the chances, if they have a daughter, that she is a carrier?

• 100%
• 75%
• 50%
• 25%

If a male has an affected x chromosome for a sex-linked trait such as colorblindness, where did he get the chromosome from?

• His father
• His mother

If the offsprings have the blood groups O and A the genotype of parents would be

• I^AI^A and I^Ai

• I^A i and ii

• I^AI^A and I^AI^A

• I^A i and I^Bi

What are the blood types of the possible children that a woman (type O) and man (type AB) can have?

• O and AB

• O and A

• O and B

• A and B

A personal with type AB blood has which genotype?

• type A

• AA

• I^AI^A

• I^AI^B

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