Dominant and Recessive Genes

B = brown fur b = white fur

In the Punnett square, what is the probability for white fur?

• 0%

• 25%

• 50%

• 75%

Tags

NGSS.MS-LS3-2

When Mendel pollinated the pea plants, what flower color options were there?

• red and green

• purple and white

• purple and blue

• white and pink

How can you find the ratio of offspring?

• divide the number of recessive genes by the number of dominant genes

• divide the number of dominant genes by the number of recessive genes

• multiply the dominant and recessive genese

• add the dominant and recessive genes together

A genetic factor that blocks another genetic factor.

• dominant trait

• recessive trait

• codominance

• heterozygous

If a gene is always expressed or always shown with a capital letter it is

• Bossy

• Recessive

• Yelling

• Dominant

A dominant trait masks or hides a(n) __________ trait.

Which eye color is dominant?

• blue eyes

• brown eyes

• green eyes

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The trait that will always be expressed if one copy of an allele is present.

• recessive

• dominant

• co-dominant

What is the phenotype expressed for the genotype Bb?

• Brown eyes

• Blue eyes

Tags

NGSS.HS-LS3-1

Describes a trait that covers over, or dominates another form of that trait.

• Recessive Traits

• Dominant Traits