Chapter 10 Quiz: Mendel

Gregor Mendel removed the male parts from the flowers of some plants in order to:

• prevent hybrids from forming

• prevent cross pollination

• make controlled crosses between plants

• prevent females from pollinating

When Gregor Mendel crossed a homozygous tall plant with a homozygous short plant, the F1 plants inherited:

• an allele for tallness from each parent.

• an allele for tallness from the tall parent and an allele for shortness from the short parent.

• an allele for shortness from each parent.

• an allele from only the tall parent.

When you flip a coin, what is the probability of that you will flip four heads in a row.

• 1/2

• 1/8

• 1/16

• 1/32

Organisms that have two identical alleles for a particular trait are said to be:

• hybrid

• homozygous

• heterozygous

• dominant

In the Punnett Square shown, which of the following is true about the offspring resulting from the cross?

• About half are expected to be short.

• All are expected to be short.

• About half are expected to be tall.

• All are expected to be tall.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The Punnett Square shows that the gene for pea shape and the gene for pea color:

• assort independently.

• are linked.

• have the same alleles.

• are always homozygous.

How many different allele combinations would be found in the gametes produced by a pea plant whose genotype is RrYY?

• 2

• 4

• 8

• 16

If a pea plant that is heterozygous for round, yellow peas (RrYy) is crossed with a pea plant that is homozygous for round peas but is heterozygous for yellow peas (RRYy) how many different phenotypes are their offspring expected to show?

• 2

• 4

• 8

• 16

Gene maps are based on:

• the frequencies of crossing-over between genes.

• independent assortment.

• genetic diversity.

• the number of genes in a cell.

Which is not an idea of Mendel?

• Segregation

• Independent Assortment

• Dominance

• Polygenic Inheritance