Monohybrid and Dihybrid Cross Practice

T4 - What genotype is missing from this Punnett Square?

• RrYy

• RRYY

• rryy

• RrYY

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

T4 - 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-LS3-3

T4 - What fraction of offspring from the cross AaBB x Aabb will be heterozygous for both traits (ex. AaBb) ?

• 1/16

• 1/4

• 1/2

• 3/16

Tags

NGSS.HS-LS3-3

In watermelons, green rinds (G) are dominant to striped rinds (g).  What is the genotype of a heterozygous green watermelon?

• GG

• Gg

• gg

• green

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In cacti, long arms (A) are dominant to short arms (a).  Suppose 2 heterozygous cacti are crossed.  What percentage of their offspring are expected to have short arms?

• 0%

• 25%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Long tongues (T) are dominant to short tongues in green tree frogs.  What is the probability that two frogs that are heterozygous for long tongues could produce offspring with short tongues?

• 100%

• 75%

• 50%

• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

One of the two forms of a gene is called a(n)

• genotype

• allele

• hybrid

• trait

Assume mom's gametes are on the left, what is her genotype?

• TTZz

• TtZz

• ttZZ

• TtZZ

Tags

NGSS.HS-LS3-1

Assume dad's gametes are on top, what is his genotype?

• AAPP

• AaPp

• aaPP

• Aapp

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which refers to the offspring resulting from a cross between homozygous parents with two contrasting traits?

• crossbred

• hybrid

• multiple allele

• purebred