Heredity and Punnett Squares

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

• Tall=T

  Short=t

• Tall=T

  Short=S

• Tall =TT

  Short=tt

• Tall=t

  Short=T

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

• 25%

• 75%

• 0%

• 50%

Tags

NGSS.HS-LS4-3

Identify the homozygous dominant genotype:

• Ff

• FF

• ff

• fF

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

• 50%

• 0%

• 100%

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

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

• 25%

• 50%

• 75%

• 0%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

What are genes?

• none of these

• The powerhouse of cells.

• Something you wear.

• Segments of DNA that carry traits for offspring.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following is an example of phenotype?

• blue eyes

• bb

• BB

Tags

NGSS.HS-LS3-1

Which of the following genotypes are purebred?

• Pf

• pP

• Pp

• pp

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

• TT

• Tall

• tt

• Tt

The different forms of a gene

• atoms

• proteins

• wheels

• alleles

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2