Punnet Square Lesson

T - tall and t = short
In the punnett square below, what belongs in the missing square

• tt

• Tt

• Bb

• TT

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What percent of offspring will have the recessive trait?

• 25

• 50

• 75

• 100

Tags

NGSS.HS-LS3-1

Which is (are) heterozygous?

• Only TT

• Only Tt

• Only tt

• Tt and tt

• TT and tt

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Where are the parents placed on the Punnett Square?

• Top & Side

• 4 squares in middle

• Only the top

• Only the Side

Black hair color is dominant to white hair color in mice.  Determine the phenotypic ratio for the offpring of a heterozygous black mouse and a white mouse.

• 4 Black: 0 White

• 3 Black: 1 White

• 2 Black: 2 White

• 0 Black: 4 White

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

In a certain species of rabbits, black coat color is dominant over brown coat color. What is the probability of producing a rabbit with brown coat color from two rabbits that are both heterozygous for black coat color?

• 0%

• 25%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

If B = brown hair and b = blonde hair, what is the probability of brown hair?

• 25%

• 50%

• 0%

• 75%

Tags

NGSS.HS-LS3-3

Which of the following represents alleles for the homozygous dominant genotype?

• Aa

• aa

• AA

Which of the following represents alleles for the homozygous recessive genotype?

• Aa

• aa

• AA

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