Unit 7 assessment

Aa, DD, bB, yy are all examples of

• genotypes
• phenotypes

Dominant alleles are represented by a:

• Male gene
• lowercase letter
• recessive trait
• capital letter

How many alleles (letters) does each person carry for a trait?

• 1

• 2

• 3

• 4

What you see, or the physical appearance.

• Genotype
• Phenotype
• Homozygous
• Heterozygous

Tags

NGSS.HS-LS3-1

Which of the following is a phenotype?

• Aa
• red hair
• heterozygous
• DNA

What ratio of the offspring from the cross shown will be homozygous recessive for the  trait of tallness? 

• 0 in 4
• 1 in 4
• 2 in 4
• 4 in 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following is homozygous dominant?

• Yy
• Y
• yy
• YY

Which of the following is homozygous recessive?

• Tt
• tt
• TT
• T

What is the probability of heterozygous offspring?

• 25%
• 50%
• 0%
• 100%

Tags

NGSS.HS-LS3-3

NGSS.HS-LS4-3

In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-3