S7L3 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

Which of the following alleles is purebred recessive?

• Tt

• tt

• TT

AA and Aa always show up as ---

• dominant.

• recessive.

Tags

NGSS.HS-LS3-1

What is ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness? T = tall t = short

• 0 in 4

• 1 in 4

• 2 in 4

• 4 in 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

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

A heterozygous long-tusked elephant is crossed with a homozygous recessive short-tusked elephant. What is the probability of the offspring having short tusks?

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

NGSS.HS-LS3-2

What is the dominant trait?

• yellow pea seeds
• green pea seeds
• there is no dominant seed
• Jolly green giant

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2