Genetics

Colorblindness is more common in males than in females because

• Fathers pass the allele for colorblindness to their sons only
• The allele for colorblindness is located on the Y chromosome.
• The allele for colorblindness is recessive and located on the X chromosome.
• Males who are colorblind have two copies of the allele for colorblindness.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many chromosomes are shown in a normal human karyotype?

• 2
• 12
• 25
• 46

Tags

NGSS.HS-LS3-1

What is the probability that a human sperm cell will carry a X chromosome?

• 50%
• 100%
• 25%
• 0%

Photograph of chromosomes grouped in ordered pairs

• pedigree
• Punnett Square
• Venn Diagram
• Karyotype

Tags

NGSS.HS-LS3-1

Chromosome that is not a sex chromosome

• Chromosome
• Autosome
• Sex Chromosome
• Homologous pair

Error in meiosis in which homologous chromosomes fail to separate

• nondisjunction
• sex-linked recessive
• autosomal dominant
• autosomal recessive

Tags

NGSS.HS-LS3-2

Chart that shows the relationships within a family

• Pedigree
• Karyotype
• T chart
• Key

Tags

NGSS.HS-LS3-1

Autosomes

• Chromosomes 1-22
• Sex Chromosomes
• Oldsmobile
• gamete

What percentage of human egg cells carries an X chromosome?

• 0%
• 25%
• 50%
• 100%

If a man does not have hemophilia (X linked trait), what percentage of his daughters will have hemophilia?

• 100%
• 75%
• 50%
• 0%