Pedigrees & Punnett Squares

T - tall and t = short

In the punnett square below, what belongs in the missing square

• tt

• Tt

• Bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

G = green, g = yellow

The genotype for a yellow plant is...

• GG

• Gg

• gg

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

B = brown fur b = white fur

In the punnett square, what is the probability for white fur?

• 0%

• 25%

• 50%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Aa, DD, bB, yy are all examples of

• genotypes
• phenotypes

What you see, or the physical appearance.

• Genotype

• Phenotype

• Homozygous

AA and Aa always show up as

• dominant
• recessive

Tags

NGSS.HS-LS3-1

Each one of the boxes on the Punnett Square represents what probability of an offsprings' genotype?

• 25%
• 1%
• 10%
• 0%

Tags

NGSS.HS-LS3-3

What ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness? 

• 0 in 4
• 1 in 4
• 2 in 4
• 4 in 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following genotypes is homozygous dominant?

• A
• Aa
• AA
• aa

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-LS3-2