Unit 6 Heredity Practice Test 1

a. 0%

b. 25%

c. 50%

d. 75%

e. 100%

a. He studied only asexual plants.

b. He studied white rabbits and how they sometimes make brown rabbits.

c. He cross-pollinated plants to study traits such as plant height, pod shape, seed color.

d. He cross-pollinated both plants and animals.

a. genes.

b. purebreds.

c. recessives.

d. parents.

a. hybrid.

b. trait.

c. purebred.

d. factor.

a. genotype

b. phenotype

c. codominance

d. heterzygous

a. homozygous alleles

b. two dominant alleles

c. one dominant and one recessive allele

d. two recessive alleles

a. the actual results from a series of events

b. the number of times a coin lands heads up

c. the way the results of one event affect the next event

d. a number that describes how likely it is that an event will occur

a. one out of four

b. two out of four

c. three out of four

d. four out of four

a. height

b. genetic makeup

c. probability

d. physical appearance

a. homozygous

b. codominant

c. heterzygous

d. incomplete

a. all the possible outcomes of a genetic cross

b. only the dominant alleles in a genetic cross

c. only the recessive alleles in a genetic cross

d. all of Mendel’s discoveries about genetic crosses

a. 25%

b. 50%

c. 75%

d. 100%

a. three different alleles for a trait.

b. two identical alleles for a trait.

c. only one allele for a trait.

d. two different alleles for a trait.

a. dominant

b. hybrid

c. probability

d. heredity

a. one

b. three

c. four

d. two

a. 100%

b. 75%

c. 50%

d. 25%

a. Gg

b. SS

c. Bb

d. Tc

a. To produce offspring with desirable characteristics

b. To increase migration patterns

c. To improve the quality of food

d. Farmers increase their profit by improving crops

a. Resistance to pesticides

b. Resistance to drought

c. Resistance to disease

d. All answers are correct