Punnett Squares & Heredity

T - tall and t = short

In the Punnett square, what belongs in the missing square?

• tt

• Tt

• TT

Tags

NGSS.HS-LS3-1

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

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-LS3-2

In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?

• 0%

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-3

Two brown eyed parents (Bb) have a baby. What is the chance their baby is blue eyed (bb)? Draw the Punnett square for help

• 0 %

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Aa, DD, Ba, and yy are all examples of ---

• genotypes

• phenotypes

AA and Aa always show up as ---

• dominant.

• recessive.

Tags

NGSS.3-LS3-1

Which of the following genotypes is homozygous dominant?

• aa

• Aa

• AA

Which of the following genotypes is heterozygous?

• Bb

• BB

• bb

Brown eyes are dominant (D) over blue eyes (d). What is the probability that the offspring will have brown eyes in this cross? Complete the Punnett square for help

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3