In mice, the homozygous mice are black and white. The heterozygous mice are gray. What pattern of inheritance is expressed in fur color in mice?

• complete dominance and recessiveness
• co-dominance
• incomplete dominance
• pleiotropy

Tags

NGSS.HS-LS3-1

Chromosomes that do NOT play a role in determining the sex of an individual are called

• sex chromosoems
• X and Y
• autosomes
• A and B are correct

What gamete possibilities could come from this parent's genotype?

• AB, AB, aB, aB
• Ab, AB, Ab, ab
• Ab, Ab, Ab, Ab
• AB, aB, ab, aB

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

If a female was a carrier for sex-linked color blindness, what percentage of her male children would also be color blind?

• 0%
• 25%
• 50%
• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

In a sex-linked inheritance pedigree you would expect to see

• more affected females
• all carrier males
• more affected males
• an equal number of affected males and females

Tags

NGSS.HS-LS3-3

A karyotype __.

• compares one set of chromosomes to another

• is a visual display of chromosomes according to size

• is a photograph of cells undergoing meiosis during anaphase

• of a normal human cell shows 48 chromosomes

• cannot be used to identify individual chromosomes beyond the fact that two chromosomes are homologous

A woman is diagnosed to have a gene for the genetic disorder known as Huntington disease. It is a rare defect caused by an autosomal dominant allele. The chance for any one of her children to inherit the gene is __.

• dependent on the sex of the child

• 1/3

• 1/2

• 3/4

• 1.00 (100%)

Tags

NGSS.HS-LS3-1

Humans have ________ pairs of chromosomes.

• 21
• 23
• 46
• None of the above

Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have ...

• 16 chromosomes.
• 46 chromosomes.
• 8 chromosomes.
• 4 chromosomes.

Tags

NGSS.HS-LS1-4

Asexual reproduction will result in

• Identical offspring to the parent
• Twins
• Meiosis
• Non-identical offspring to the parent

Tags

NGSS.MS-LS3-2