Punnett Square, Incomplete & Codominance Review

The different forms of a gene are called ---

• traits

• hybrids

• alleles

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The blending of two traits is known as ---

• incomplete dominance

• codominance

Tags

NGSS.HS-LS3-2

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

• incomplete dominance.

• codominance

Tags

NGSS.HS-LS3-1

A condition in which both alleles for a gene are expressed so that both traits are visible is known as ---

• Codominance

• Incomplete dominance

What type of inheritance pattern is shown here?

• Codominance

• Incomplete dominance

Tags

NGSS.HS-LS3-1

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

• Red and white

• Red

• Pink

Tags

NGSS.HS-LS3-1

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 pink (RW) flowers?

• 0%

• 25%

• 50%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Codominance occurs in calico cats, which allows for the Black and Tan colors to show. What percentage of the offspring will be calico (black and tan spotted)?

• 25

• 50

• 75

• 100

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Some flowers are controlled by codominance. Red flowers (RR), blue flowers (BB) and Speckled flowers (RB).

Cross two speckled flowers.

• 1 red, 2 speckled, 1 blue

• 2 red, 2 blue

• 2 blue, 2 speckled

• 1 red, 1 speckled, 2 blue

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

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

Cross 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

NGSS.HS-LS3-3