Punnett Square

What is the probability of heterozygous offspring?

• 25%

• 50%

• 0%

• 100%

Tags

NGSS.HS-LS3-3

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

• recessive

• dominant

• lower case letter

• both 

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

Which of the following is homozygous dominant?

• Yy

• Y

• yy

• YY

Which of the following is homozygous recessive?

• Tt

• tt

• TT

• T

What is the percent chance that the offspring will have NO belly fur?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the percent chance that the offspring will be HOMOZYGOUS DOMINANT for having belly fur?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

What is the percent chance that the offspring will HAVE belly fur?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

What is the percent chance that the offspring be HETEROZYGOUS for hair length?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

What is the percent chance that the offspring will have LONG hair?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3