Punnett Squares and Heredity

In pea plants, the tall allele is dominant to the short allele. What key would demonstrate this?

• Tall = T
  Short = S
• Tall = T
  Short = t
• Tall = t
  Short = T
• Tall = TT
  Short = tt

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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-LS3-2

NGSS.HS-LS3-3

Identify the homozygous dominant genotype:

• FF
• Ff
• ff

If a homozygous recessive woman marries a heterozygous man. What is the chance of having a baby with dimples?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Two parents have a heterozygous genotype for eye color. What is the chance of having a blue eye baby?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What are genes?

• Something you wear.
• Segments of DNA that carry traits for offspring.
• The powerhouse of cells.
• None of the above.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following is an example of phenotype?

• bb
• blue eyes

Which of the following genotypes are purebred?

• Pf
• Pp
• PP
• pP

If you are purebred dominant for a trait, your genotype would be...

• Tt
• TT
• tt
• tall

Which of these is homozygous recessive?

• Rr
• rR
• RR
• rr