Genotype and Phenotype Formative Assessment

Which of the following is homozygous dominant?

• Yy

• Y

• yy

• YY

HH

• Heterozygous genotype

• Homozygous dominant genotype

• Homozygous recessive genotype

Answer explanation

The correct choice is 'homozygous dominant' because 'HH' represents a genotype with two of the same alleles, both dominant.

What you see on the outside, or physical traits of a person, is called their _________.

• Genotype

• Phenotype

• Homozygous

• Heterozygous

What is the phenotype of the offspring? (A=Brown hair; a=blonde hair)

• 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

NGSS.HS-LS3-3

Which of the following genotypes is heterozygous?

• Bb

• BB

• bb

• B

Which of the following is homozygous dominant?

• Yy

• Y

• yy

• YY

Which of the following is homozygous recessive?

• Tt

• tt

• TT

• T

BB, bb, and Bb are all examples of

• genotypes

• phenotypes

Solve a punnett square for a brown-eyed mother (Bb) and a green-eyed father (bb). Select the correct genotypes & phenotypes for the offspring.

• 50% Bb and 50% bb

• 50% BB and 50% bb

• 100% Bb

• 100% bb

Tags

NGSS.HS-LS3-1

Solve a punnett square for a curly-haired mother and a straight-haired (homozygous dominant) father. [Straight hair=H, Curly hair=h]. Select the correct genotypes for the offspring.

• 25% hh, 50% HH, 25% Hh

• 50% HH, 50% hh

• 100% HH

• 100% Hh

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2