Dihybrid

Pink body color (P) is dominant to orange body color (p); Thick eyebrows (T) is dominant to thin eyebrows (t). Patrick, who is heterozygous for body color but purebred for thick eyebrows, has met Patti, who is recessive for both traits. Which of the following is Patti's genotype?

• PPtt

• pptt

• ppTt

• PPtt

Tags

NGSS.HS-LS3-1

What is the expected typical ratio for a dihybrid cross involving parents heterozygous for both traits?

• 6:2:2:6

• 0:8:8:0

• 9:3:3:1

• 4:4:4:4

Tags

NGSS.HS-LS3-3

How many different genotypes are possible for a dihybrid cross between a parent that is homozygous dominant for both traits and a parent that is heterozygous for both traits?

• 8

• 2

• 4

• 6

In a dihybrid cross, the two sets of ______________ being studied are located on separate chromosomes, so the traits themselves are unrelated.

How many different phenotypes are possible for a dihybrid cross between two pea plants that are both homozygous recessive for pea shape and heterozygous for color?

• 4

• 2

• 1

• 3

Solve BbRr x BbRr

Which squares(s) would say BBRR

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Solve BbRr x BbRr

Which squares(s) would say BBRr

Tags

NGSS.HS-LS3-2

Solve BbRr x BbRr

Which squares(s) would say BbRr

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many boxes would express dominant for both traits ​ (a)  

• 9

• 3

• 4

• 16

• 1

• 12

• 6

• 2

​ how many boxes would express

Dominant for trait 1

Recessive for trait 2

​ ​ (a)  

• 3

• 4

• 16

• 1

• 12

• 6

• 2

• 9

Tags

NGSS.HS-LS3-2