Punnett square quiz

In pea plants, tall stems (T) are dominant over short stems (t). What would be the genotypic ratio of offspring from a cross between a heterozygous tall plant (Tt) and a short plant (tt)?

• 50% Tt, 50% tt

• 100% tall plants

• 75% tall, 25% short

• 25% Tt, 75% tt

Tags

NGSS.HS-LS3-1

If you cross a homozygous dominant black fur guinea pig (BB) with a homozygous recessive brown fur guinea pig (bb), what will the offspring’s fur color be?

• 50% black, 50% brown

• 75% black, 25% brown

• 100% black

• 100% brown

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In cats, short hair (H) is dominant over long hair (h). If a heterozygous short-haired cat (Hh) is crossed with a long-haired cat (hh), what percentage of their offspring will have long hair?

• 100%

• 50%

• 25%

• 0%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Which of the following represents a monohybrid cross?

• Tt x Tt

• TtPp x TtPp

• RRYY x rryy

• AaBb x AaBb

If you cross two heterozygous pea plants (Tt x Tt), what percentage of the offspring will be short?

• 0%

• 25%

• 50%

• 75%

In a cross between a homozygous dominant (AA) and a homozygous recessive (aa), what will the genotypic outcome of the offspring be?

• 100% Aa

• 50% Aa, 50% aa

• 100% AA

• 75% Aa, 25% aa

Tags

NGSS.HS-LS3-1