Punnett Squares

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

• recessive

• dominant

• both

T - tall and t = short

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

• tt

• Tt

• TT

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

G = green, g = yellow

The genotype for a yellow plant is...

• GG

• Gg

• gg

• all of the choices result in yellow

Tags

NGSS.MS-LS1-5

NGSS.MS-LS3-1

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

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

Which of the following alleles is purebred recessive?

• Tt

• tt

• TT

Two brown eyed parents (Bb) have a baby. What is the chance their baby is blue eyed?

• 0 %

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Each one of the boxes on the Punnett square represents what probability of an offspring's genotype?

• 25%

• 1%

• 10%

• 0%

Tags

NGSS.HS-LS3-3

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

• genotypes

• phenotypes

Tags

NGSS.HS-LS3-1

AA and Aa always show up as ---

• dominant.

• recessive.

Tags

NGSS.HS-LS3-1