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Worksheets

Genetics

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

When there is incomplete dominance,...

a)

One allele has more influence than the others

b)

Each allele has its own degree of influence.

c)

The alleles have no influence

d)

There are no alleles present

2.

Which of these is an example of asexual reproduction?

a)

Mrs. Floyd prevents one type of sweet corn in her garden from pollinating another type of sweet corn in her garden.

b)

Mrs. Floyd gives her neighbor some seeds that grew in her garden so the neighbor can plant a garden next year

c)

Mrs. Floyd takes pollen from one plant and uses it to fertilize another plant.

d)

Mrs. Floyd gives her neighbor from one of her African violets so the neighbor can start a new plant with it.

3.

What did Mendel discover about recessive traits?

a)

Recessive traits reappear in the second generation.

b)

Recessive traits disappear altogether.

c)

Recessive traits never appear in the second generation

d)

Recessive traits become dominant.

4.

In fruit flies, the allele for white eyes (W) is dominant to the allele for red eyes (w). Two heterozygous fruit flies are crossed, resulting in many offspring. Which of the following would best describe the population of offspring?

a)

All of the offspring population is white-eyed.

b)

The majority of the offspring population is red-eyed

c)

The majority of the offspring population is white-eyed.

d)

About half of the offspring population is red-eyed, and the other half of the population is white-eyed.

5.

Janet is studying a population of genetically-identical individuals. Janet can conclude that these organisms.

a)

Do not reproduce

b)

Reproduce asexually

c)

Reproduce sexually

d)

Are multi-cellular

6.

What is the name of the process in which the egg and sperm merge to produce a complete set of chromosomes?

a)

Mitosis

b)

Fertilization

c)

Meiosis

d)

Halitosis

7.

Which of the following statements is NOT true ?

a)

One gene can influence many traits.

b)

Several genes can influence a single trait.

c)

The environment can have an influence on traits.

d)

Genes are the only influence on traits.

8.

Amanda is not sick, but she is the carrier of a disease allele. What is another way to describe her condition??

a)

Homozygous dominant for the disease gene.

b)

Heterozygous for the disease gene.

c)

Homozygous recessive for the disease gene.

d)

Recessive for the disease gene.

9.

The picture shows a starfish common to the Mediterranean Sea, They are a problem to the fisherman who pick them out their nets and cut them into tiny little pieces. This only helps the starfish to reproduce and make more starfish. This type of reproduction is

a)

Sexual reproduction by budding

b)

Sexual reproduction through gamete production.

c)

Asexual reproduction by regeneration.

d)

Asexual reproduction by meiosis.

10.

What are chromosomes that carry the same sets of genes?

a)

Twin chromosomes

b)

Homologous chromosomes

c)

Ordinary chromosomes

d)

Asexual chromosomes