Dihybrid Cross

A way to predict genetic probability using two different

sets of alleles on two different chromosomes.

• Co-Dominance

• Incomplete Dominance

• Monohybrid Cross

• Dihybrid Cross

Tags

NGSS.HS-LS3-3

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

• 9

• 2

• 3

• 6

Tags

NGSS.HS-LS4-3

In a dihybrid cross

• one trait is crossed.

• two traits are crossed.

• four boxes are needed for the punnett square.

• mom's alleles are dominant.

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-LS3-2

The chart shows a dihybrid cross between pea plants. What are the genotypes of the parents in this cross?

• RrYy and RrYy

• RRYY and rryy

Tags

NGSS.HS-LS3-1

What was the primary objective of Mendel's dihybrid cross experiments?

• To determine the effect of environment on plant height

• To study the inheritance of two different traits

• To confirm the true-breeding nature of pea plants

• To understand the role of pollinators in plant breeding

What are the possible genotypes for this cross?

• TT = 25% Tt= 50% tt=25%

• all tall

• TT= 75% tt = 25%

• Tt = 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

What goes in box 3

• Aabb

• AABB

• AAbb

• aaBb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What goes in box 15

• aabb

• AABB

• aaBB

• AAbb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2