Dihybrid Crosses Review

Cross Two Homozygous plants
(RRYY x rryy)
R = round seeds, r  = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds? 

• 0%
• 25%
• 50%
• 100%

Tags

NGSS.MS-LS3-2

Using the dihybrid cross and key provided, what is the probability of the offspring being tall and white?

• 9
• 2
• 3
• 6

Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?

• 9/16

• 3/16

• 1/16

• 16/16

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Based off this punnett square, what fraction of the offspring will have wrinkled, green seeds?

• 9/16

• 3/16

• 1/16

• 16/16

Tags

NGSS.HS-LS3-3

What gamete possibilities could come from this parent's genotype?

• AB, AB, aB, aB
• Ab, AB, Ab, ab
• Ab, Ab, Ab, Ab
• AB, aB, ab, aB

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

AA and Aa always show up as

• dominant

• recessive

Tags

NGSS.HS-LS3-1

What is another way of saying "purebred"?

• homozygous
• dominant
• recessive
• heterozygous

What genotype is missing from this Punnett Square?

• RrYy
• RRYY
• rryy
• RrYY

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What goes in box 2

• AABb
• AaBb
• aabb
• AaBB

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

A white mouse with red eyes is crossed with a black mouse with brown eyes. The white mouse is recessive for both of its traits. The black mouse is dominant for both of its traits.

This cross would be

• BBEE x bbee

• BBEe x BbEe

• BbEE x BbEe

• BBee x BBEE

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2