Non Mendelian Genetics

Mom was black. Dad was white. What is the most likely explanation?

• complete dominance

• incomplete dominance

• codominance

• polygenic inheritance

• multiple alleles

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Mom and dad are star belly sneeches. Baby does not have a star. What is the best explanation for this?

• complete dominance

• incomplete dominance

• codominance

• polygenic inheritance

• multiple alleles

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A roan cow shows codominance in fur color (brown and white). What is the phenotype ratio expected in offspring a female roan and a male roan mate together?

• All four would be brown and White

• Half would be orange, half would be white

• 2 Brown: 2 Brown and White: 0 White

• 1 Brown: 2 Brown and White: 1 White

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A breed of chicken shows codominance for feather color. One allele codes for black feathers, another codes for white feathers. The feathers of heterozygous chickens of this breed will be:

• all black

• all white

• all gray

• speckled black and white

Tags

NGSS.HS-LS3-1

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

• Red = RR, white = rr, speckled = SS

• Red = RR, white = WW, speckled = SS

• Red = RR, white = RW, Speckled = WW

• Red = RR, white = WW, speckled = RW

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

If this image were real, it would represent what type of inheritance?

• incomplete dominance

• codominance

• polygenic inheritance

• compete dominance

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In Genetics, different characteristics may be controlled by one gene with two alleles and may have a codominant or incompletely dominant relationship. What do you call these phenomenon?

• Mendelian Inheritance

• Incomplete Inheritance

• Codominant Inheritance

• Non - Mendelian Inheritance

The reddish-brown and white coat color in the example above has codominant alleles for reddish-brown coat color and white coat color in cows. Basing on the Genotypic Punnett Square, predict the color of coat of the cow in the blank space.

• Reddish - Brown

• White

• Brown

• Red

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Based on the Punnett Square shown above, what is the percentage of getting a RW offspring?

• 50%

• 75%

• 25%

• 100%

Tags

NGSS.HS-LS3-1

A completely dominant allele does not occur when the phenotype of a heterozygote offspring is somewhere in between the phenotypes of both homozygous parents. What type of dominance is this?

• Incomplete Dominance

• Codominance

• Complete Dominance

• Failed Dominance