Non-Mendelian Genetics

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-LS3-2

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

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In butterfly bushes, dark purple and pink parents will produce offspring with lavender flowers. This is a result of 

• codominance
• incomplete dominance
• complete dominance
• recessive dominance

Tags

NGSS.HS-LS3-1

A gene that is controlled by more than two alleles

• MULTIPLE ALLELES

• PLEIOTROPY

Pattern of heredity in which both alleles are simultaneously expressed in the heterozygote

• CODOMINANCE

• MULTIPLE ALLELES

Blood type is determined by _______ alleles

• One
• Two
• Multiple

Black and white checkered chickens is an example of ______.

• Codominance
• Incomplete dominance.
• Polygenic characteristics

Controlled by more than one gene.

• Codominance
• Incomplete dominance.
• Polygenic characteristics

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

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Incomplete dominance or co-dominance?
A calico cat shows both the traits for orange fur and black fur. 

• Incomplete Dominance
• Co-dominance
• Complete dominance
• Mendelian dominance