Mendelian Traits

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

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

Green peas are dominant (G) to yellow peas (g). What is the genotype for a hetereozygous dominant offspring?

• Gg

• gg

• GG

Tags

NGSS.HS-LS3-1

What do you call the physical expression of a gene?

• genotype

• dominant

• phenotype

• allele

Tags

NGSS.HS-LS1-1

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

• 0 %

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

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

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

The different forms of a gene are called

• traits

• pollinators

• alleles

• hybrids

Tags

NGSS.HS-LS3-2

Passing on traits from parents to offspring

• Chromosome

• Genotype

• Heredity

• Allele

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2