Genetics Quiz

How many chromosome pairs do humans have?

• 23

• 46

• 69

• 92

Tags

NGSS.HS-LS3-1

What are alleles?

• Multiple genes that code for more than two characteristics

• Alternate forms of a gene

• Chromosome pairs that separate during meiosis

• Characteristics that are passed on to all offspring

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The pea plant was a good organism to use for breeding experiments because it reproduced quickly and had easy to recognize traits. True or False?

• True

• False

True-breeding plants are called

• hybrids

• heterozygous

• purebreds

• codominant

When Mendel crossed the F1 plants (Aa x Aa), what did the offspring look like?

• Half looked like one parent and half looked like the other parent.

• All of them looked like the parents.

• 75% looked like the parents.

• 25% looked like the parents.

Tags

NGSS.MS-LS3-1

NGSS.MS-LS3-2

If an organism has a dominant allele, then its phenotype will also be the dominant trait. True or False?

• True

• False

Tags

NGSS.HS-LS3-1

A recessive allele can mask a dominant allele. True or False?

• True

• False

In this cross, what is the probability that the offspring will have green pea pods?

• 100%

• 75%

• 50%

• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

________ is the passing of traits or characteristics from one generation to the next.

• Cross breeding

• Codominance

• Dominance

• Heredity

Tags

NGSS.MS-LS3-2

A lowercase letter in a Punnett square represents a ________ allele.

• codominant

• dominant

• recessive

• incomplete

• multiple

Tags

NGSS.HS-LS3-1