Intro to Genetics--Monohybrids

If tall is dominant over short, which of the following is a homozygous recessive genotype?

• tall

• short

• TT

• Tt

• tt

If tall is dominant over short, which of the following is a heterozygous genotype?

• tall

• short

• TT

• Tt

• tt

If tall is dominant over short, which of the following is a homozygous dominant genotype?

• tall

• short

• TT

• Tt

• tt

Which of the following terms means the same thing as "heterozygous"?

• hybrid

• pure

• homozygous

• monohybrid

Which of the following terms means the same thing as "homozygous"?

• hybrid

• pure

• homozygous

• monohybrid

What is the cross that produced the Punnett square below?

• TT x tt

• TT x Tt

• Tt x Tt

• Tt x tt

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the phenotypic ratio of the Punnett square pictured?

• 0:4:0

• 0:2:2

• 2:2

• 3:1

• 2:2:0

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the genotypic ratio of the Punnett square pictured?

• 0:4:0

• 0:2:2

• 2:2

• 3:1

• 2:2:0

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

When Mendel crossed a pure tall with a pure short plant (for the P1 generation), what would this cross look like?

• Tt x Tt

• TT x tt

• TT x Tt

• Tt x tt

A cross involving only one trait (like plant height) is called a ____ cross.

• homozygous

• heterozygous

• monohybrid

• Punnett

• heredity