Monohybrid Crosses

B = brown fur b = white fur

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

• 0% (0/4)

• 25% (1/4)

• 50% (2/4)

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

How much of the offspring pictured have a heterozygous result?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Dominant: Smiley (E) Recessive: Frowning (e)

What is the genotype of a person who is frowning?

• EE

• Ee

• ee

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Dominant: Freckles (F); Recessive: No freckles (f)

What is the genotype of a person who has freckles? (2)

• FF

• ff

• Ff

Tags

NGSS.HS-LS3-1

Dominant: Dimples (D); Recessive: No dimples (d)

What is the genotype of a person who has dimples?

• Dd

• DD

• dd

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Round seeds (R) are dominant over wrinkled seeds (r). What percentage of the offspring will be round from the following cross?
Rr X Rr

• 100%
• 75%
• 50%
• 25%

Tags

NGSS.HS-LS3-3

Round seeds (R) are dominant over wrinkled seeds (r). What percentage of the offspring will be round from the following cross?
RR X Rr

• 100%
• 75%
• 50%
• 25%

Tags

NGSS.HS-LS3-3

NGSS.HS-LS4-3

A heterozygous round seeded plant (Rr) is crossed with a homozygous dominant round seeded plant (RR). What percentage of the offspring will be homozygous dominant?

• 100%
• 75%
• 50%
• 25%

T - tall and t = short
In the punnett square below, what belongs in the missing square

• tt
• Tt
• Bb
• TT

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed? (B=brown eyes and b=blue eyes)

• 0 %

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-3