Genetics Station Quiz

What is the main function of DNA?

• To carry genetic information

• To store energy for cells

• To create proteins for the body

• To break down food into nutrients

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following is an example of a phenotype?

• Eye color

• (BB)

• DNA structure

• Gene sequence

If a child has brown eyes and both parents have brown eyes(BB), what are the chances that the child will have blue eyes?

• 100%

• 25%

• 0%

• 75%

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NGSS.HS-LS3-1

What does a Punnett square show?

• The number of chromosomes in an organism

• The DNA sequence of a gene

• The possible genetic outcomes of a cross between two organisms

• The physical traits of an organism

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NGSS.HS-LS3-3

A genotype is the physical expression of a trait, like brown eyes.

• True

• False

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NGSS.HS-LS3-1

A dominant allele will always mask the effect of a recessive allele in a heterozygous individual.

• True

• False

Humans have 23 pairs of chromosomes.

• True

• False

Answer explanation

Humans have 46 chromosomes, which come in 23 pairs.

Phenotype refers to the genetic code in an organism's DNA.

• True

• False

Answer explanation

Phenotype refers to the physical expression of traits, while genotype refers to the genetic code.

Explain the difference between a genotype and a phenotype.

Tags

NGSS.HS-LS4-4

Why might two parents with brown eyes have a child with blue eyes?

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2