Incomplete and Codominance Intro

In some carnations, flower color exhibits codominance.  Identify the correct genotypes for red, white, and speckled carnations.

• Red = RR, white = rr, speckled = Rr

• Red = RR, white = WW, speckled = rw

• Red = RR, white = ww, Speckled = Rw

• Red = RR, white = WW, speckled = RW

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A black male and white female produced this grey offspring:

• Incomplete dominance

• Codominance

• Complete dominance

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Radish color is incompletely 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

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In the image above, what is the percentage of the offspring has the possibility of inheriting blood type O?

• 0%

• 25%

• 50%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

Tags

NGSS.HS-LS3-1

Which of the following codes for blood type O?

• I^A I^A

• I^B i

• I^A I^B

• ii

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The image above shows the incomplete dominant cross where D codes for straight hair in dogs and d codes for curly hair in dogs. The incomplete dominant trait is wavy hair. Which of the following statements is true about the offspring?

• Only the heterozygous genotype can code for wavy hair.

• Only the homozygous dominant genotype can code for wavy hair.

• Only the homozygous recessive genotype can code for wavy hair.

• The homozygous recessive and homozygous dominant genotypes can code for wavy hair.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

• Incomplete Dominance

• Co dominance

When one allele is not dominant over another, resulting in a blended phenotype for heterozygous offspring is considered....

• Incomplete Dominance

• Codominance

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

• Incomplete Dominance

• Codominance