dihybrid cross

In guinea pigs, short hair (H) is dominant to long hair (h). Also, black eyes (B) are dominant to red eyes (b).

Determine the genotype of a guinea pig with the phenotype: short hair with red eyes (select all possible genotypes)

• HHbb

• Hhbb

• hhBB

• HHBb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A person with the genotype BBMm could produce which of the gametes below ...

• Bb

• BM

• bM

• Bm

Tags

NGSS.HS-LS3-2

In horses, a straight mane (H) is dominant over a curly mane(h). Trotter horses (T) are dominant to pacer horses (t).

Determine the genotype of a horse with the phenotype: curly maned pacer horse

• HhTT

• hhTT

• hhtt

• HHtt

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Heterozygous means

• The organism has the same genes for the trait

• The organism has two different genes for the same trait

• The organism really needs to go shopping!

Tags

NGSS.HS-LS3-2

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-LS3-1

NGSS.HS-LS3-2

Aa, DD, bB, yy are all examples of

• genotypes
• phenotypes

An organism’s genetic makeup or allele combination.

• Genotype
• Phenotype
• Beanotype
• Notype

Which of the following is the genotype for a purebreed dominant alleles?

• ggYy

• GGYy

• Ggyy

• GGYY

Homozygous means

• The organism has the same genes for the trait

• The organism has two different genes for the same trait

• The organism really needs to go shopping!