Modern Genetics

This type of inheritance pattern is a MIXTURE of two traits. This is known as ---

• incomplete dominance.

• codominance

Which of the following genotypes code for the blood type AB?

• I^A I^A and I^A I^B

• I^A I^B only

• I^A I^B and I^B i

• ii only

Which of the following are genotypes for blood type B?

• I^A I^A and I^A I^B

• I^B I^B and ii

• I^B I^B and I^B i

• I^A I^B and I^A I^B

A woman with curly hair and a man with straight hair produced a child with wavy hair:

• Incomplete dominance

• Codominance

• Complete dominance

A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?

• Incomplete dominance

• Codominance

This is an example of ---

• Incomplete dominance

• Codominance

This is an example of ---

• Incomplete dominance

• Codominance

A red flowered plant (RR) is crossed with a white flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance. What percentage of the offspring will have red (RR) flowers?

• 0%

• 25%

• 50%

• 100%

A long-haired female rabbit and a short-haired male rabbit produced this offspring with a medium-length coat:

• Incomplete dominance

• Codominance

• Complete dominance

In chickens, feather color is codominant.  If a black chicken BB is mated with one that is black and white (BW) what are the chances of having a chicken that is black and white?

• 50%
• 0%
• 25%
• 100%