Chapter 5: Genetics

Recessive traits are always show in an organism's offspring.

• True

• False

The study of ________ is called genetics.

• heredity

• dominance

• pea plants

• mutations

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NGSS.HS-LS1-1

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Gregor Mendel studied heredity using ________plants.

• rose

• pea

• maize

• tundra

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NGSS.HS-LS3-2

Self-pollination is when the pollen lands on ________.

• the same plant

• the next plant over

• the person holding the plant

• back where it came from

A recessive trait is observed when _______recessive genetic factors are present in an offspring.

• 0

• 1

• 2

• 3

A genetic factor that blocks another genetic factor is called a(n) ________.

• genetic trait

• heredity trait

• recessive trait

• dominant trait

Recessive alleles are seen when a trait is recessive homozygous.

• True

• False

A florist has one kind of plant that usually has beautiful red flowers, but sometimes has white flowers. If she crosses plants A and B as shown here, 50% of the offspring will have red flowers.

• True

• False

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In a Punnett Square, a capital letter stands for a ________allele.

• recessive

• dominant

• homozygous

• heterozygous

Of the following, which is NOT a human blood phenotype?

• O

• AB

• B

• C