Incomplete Dominance

What type of inheritance do two alleles have if their traits blend together?

• Incomplete Dominance

• Codominance

• Complete Dominance

• Homozygous Inheritance

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%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

This is an example of _______________?

• Incomplete dominance

• Codominance

• Complete Dominance

• Polygenic Inheritance

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A tall plant (TT) is crossed with a short plant (SS) and a medium plant (TS) results. This is what type of inheritance pattern?

• Incomplete Dominance

• Codominance

• Complete Dominance

• Polygenic Inheritance

Tags

NGSS.HS-LS3-1

Snapdragon flowers come in red, pink and white. What type of inheritance is this?

• Complete Dominance

• Incomplete Dominance

• Codominance

• Polygenic Inheritance

If a homozygous red snapdragon and a heterozygous pink snapdragon were crossed-what would the parent genotypes be?

• RR x WW

• RW x RW

• RR x RW

• WW x RR

Tags

NGSS.HS-LS3-1

If a homozygous red snapdragon and a heterozygous pink snapdragon were crossed, what would the phenotypic ratio of the offspring be?

• 1RR:2RW:1WW

• 2RR:2RW:0WW

• 0RR:2RW:2WW

• 2RR:0RW:2WW

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

The hair form gene shows incomplete dominance. Straight hair is dominant, curly hair recessive, and wavy hair is heterozygous. Mr. and Mrs. Anderson both have wavy hair. What are the phenotypic possibilities for their children? You may chose more than one answer.

• 25% curly

• 100% wavy

• 25% straight

• 50% wavy

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

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

• incomplete dominance
• co-dominance
• complete dominance
• recessive pattern

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

• Red and White

• White

• Pink

Tags

NGSS.HS-LS3-1