Genetics Review Biology

Which pair of alleles is an example of homozygous dominant?

• tt

• TT

• Tt

Tags

7.11(A), 7.11(B), 7.11(C)

How many chromosomes are in a human egg cell and passed down from a mother to her child?

• 23

• 46

• 92

• 32

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

This type of inheritance pattern is a MIXTURE of both traits, like the old theory of blending

• incomplete dominance

• co-dominance

• complete dominance

• recessive pattern

What is the genotype for a pea plant heterozygous for round seeds (R), and homozygous recessive for green seeds (y)?

• Ry

• RRyy

• RrYy

• Rryy

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following is not a possible genotype of the offspring from parents with genotypes RW and RW in a flower color inheritance showing incomplete dominance?

• RR

• RW

• WW

• WR

Gregor Mendel used pea plants to study

• Inheritance of traits

• flowering

• cross-pollination

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

If a Heterozygous Rr pea plant is crossed with a Homozygous rr pea plant, what would be the percentage that the offspring will be recessive rr?

• 50%

• 75%

• 25%

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-3

A pea plant that has 2 different alleles for the same trait is said to be

• Heterozygous

• Homozygous

• Phenotype

How many children will have the disease? (look at the picture to help you)

• 1

• 0

• 2

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many girls will be carriers?

• 1

• 0

• 2

Tags

NGSS.HS-LS3-1