Mendelian Genetics Lesson

What genotype would go in box 2?

• BB

• Bb

• bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In pea plants, round seeds (R) are dominant to wrinkled seeds (r). Which of the following represents the genotype of a pea plant that is homozygous dominant?

• RR

• round

• Rr

• wrinkled

• rr

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What are the possible phenotype(s) of the offspring?

• 50% Brown Hair and 50% Blonde Hair

• 25% Brown Hair and 75% Blonde Hair

• 75% Brown Hair and 25% Blonde Hair

• 0% Brown Hair and 100% Blonde Hair

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Round (R) and yellow (Y) are dominant traits. Based off this Punnett square, what fraction of the offspring will have wrinkled, yellow seeds?

• 9/16

• 3/16

• 1/16

• 16/16

Tags

NGSS.HS-LS3-3

What percentage of the offspring of the cross BbTt x BBtt will have black fur and long tails?

• 0%

• 25%

• 50%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Brown eyes (B) are dominant to green (b). What percent of offspring would be green?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the phenotypic ratio of a dihybrid cross of 2 heterozygous parents?

• 3:4:3:6

• 1:2:3:4

• 9:3:3:1

• 8:4:3:1

What you see, or the physical appearance.

• Genotype

• Phenotype

• Homozygous

• Heterozygous

Heterozygous is when...

• the alleles are the same

• the alleles are different

• the alleles are absent

• the alleles are present

G = green, g = yellow
The genotype for a yellow plant is...

• GG

• Gg

• gg

• all of the choices result in yellow

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2