Genetics and Punnet Square Review

B = brown fur  b = white fur
In the punnett square, what is the probability for white fur? 

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

What is the probability of heterozygous offspring?

• 25%
• 50%
• 0%
• 100%

Tags

NGSS.HS-LS3-3

NGSS.HS-LS4-3

What is the phenotype of the offspring? (A-Brown hair; a-blond hair) 

• 50 % Brown Hair and 50% Blond Hair 
• 25 % Brown Hair and 75% Blond Hair 
• 75 % Brown Hair and 25% Blond Hair 
• 0% Brown Hair and 100% Blond Hair 

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

A homozygous dominant brown mouse is crossed with a heterozygous brown mouse (tan is the recessive color). 

• 100 % tan
• 100 % brown 
• 50 % brown and 50% tan 
• 75 % brown and 25 % tan 

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Heterozygous is when...

• the alleles are the same
• the alleles are different
• the alleles are absent
• the alleles are present

Tags

NGSS.HS-LS3-2

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

Which of the following alleles is homozygous (purebred) recessive?

• Tt
• tt
• TT
• t

Tags

NGSS.HS-LS3-1

Dominant alleles are represented by a:

• Male gene
• lowercase letter
• recessive trait
• capital letter

Aa, DD, bB, yy are all examples of

• genotypes
• phenotypes

Tags

NGSS.HS-LS3-1

What you see, or the physical appearance.

• Genotype
• Phenotype
• Homozygous
• Heterozygous

Tags

NGSS.HS-LS3-1