Monohybrid Cross Lesson

Aa is an example of

• homozygous dominant
• homozygous recessive
• heterozygous
• none of these

Tags

NGSS.HS-LS3-1

bb is an example of

• homozygous dominant
• homozygous recessive
• heterozygous
• none of these

Tags

NGSS.HS-LS3-1

Recessive alleles are written using

• capital
• lowercase
• both
• neither

Which of the following is a genotype?

• long hair
• blue eyes
• Gg
• tall

Tags

NGSS.HS-LS3-1

Dominant alleles are written using

• capital
• lowercase
• both
• neither

Tall is dominant to short. A homozygous tall plant is crossed with a short plant. What will be the phenotypes of the offspring?

• 100% tall
• 50% tall, 50% short
• 75% tall, 25% short
• 25% tall, 75% short

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

An organism with two different alleles for a trait is said to be: 

• recessive
• hybrid
• dominant
• purebred

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

An allele whose trait only shows up when no dominant allele is present.

• hidden allele
• dominant allele
• recessive allele
• present allele

Tags

NGSS.HS-LS3-2

T = tall an t = short
TT and Tt would result in  the following phenotype

• short

• tall

• medium sized

• neither tall or short

Tags

NGSS.HS-LS3-1

T - tall and t = short
In the punnett square below, what belongs in the missing square

• tt
• Tt
• Bb
• TT

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3