Non-Mendelian Genetics Review

In mice, the homozygous mice are black and white. The heterozygous mice are gray. What pattern of inheritance is expressed in fur color in mice?

• complete dominance and recessiveness
• co-dominance
• incomplete dominance
• pleiotropy

If this image were real, it would represent what type of inheritance?

• incomplete dominance
• codominance
• polygenic inheritance
• compete dominance

A red flowered plant (rr) breeds with a White flowered plant (ww). The gene for petal color in these plants expresses incomplete dominance.  What percentage of the offspring will have pink (rw) flowers?

• 0%
• 25%
• 50%
• 100%

This is an example of ___________?

• Incomplete dominance
• Co-Dominance

What do you call the non-Mendelian inheritance pattern that states that neither trait is dominant and the traits appear to blend together?

• Codominance
• Incomplete dominance
• Polygenic traits

Snap dragon color is a incomplete dominant trait.  A red flower (RR) is crossed with white flower (rr)? What color are flowers that are Rr?

• Red
• Red and White
• White
• Pink

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

In mice coat color is incompletely dominant. Black and white are homozygous. Brown mice are heterozygous.

What is the genotype for a brown mouse?

• BB

• Bb

• bb

In cattle red coats are represented as RR, and white coats are represented as WW.

What is the genotype for Roan color?

• RR

• RW

• WW

What percentage of the offspring will have this recessive disease?

• 0%
• 25%
• 50%
• 75%