Free Printable Genetics and Heredity Test

1.

Who named the cell by looking at cork?

a)

Schleiden

b)

Leeuwenhoek

c)

Hooke

d)

Schwann

2.

All living things are made of

(a)

Choose from the below words

bricks

cell walls

cells

3.

Where do cells come from?

a)

Other existing living cells

b)

Dead cells

c)

Soil

4.

The first scientist to study heredity is known as the "Father of Genetics".

Who is this scientist?

(a)

Choose from the below words

Gregor Mendel

Robert Hooke

Anton van Leewenhoek

5.

What did Mendel's work help us to understand?

a)

Why offspring have traits similar to their parents.

b)

How to create new colors of pea plant flowers.

c)

Why there are so many pea plants.

6.

Which of these things are made of cells?

a)

metal spoon

b)

red apple

c)

glass window

7.

Which of these statements is NOT true about cells?

a)

All living things are made of cells.

b)

Cells only die when the whole organism dies.

c)

Humans are made of many different types of cells.

8.

Which of the following is an example of an inherited human trait?

a)

Dyed hair color

b)

Curly hair

c)

Length of hair

9.

Put the parts of a cell in order from SMALLEST to LARGEST?

a)

gene

b)

DNA

c)

chromosome

d)

nucleus

1)

2)

3)

4)

10.

One of the characteristics Mendel studied was pea shape. There were two shapes --smooth and wrinkled.

Examine the F1 and F2 results he got from his experiments.

Which of these is an inference based on an observation of the F1 generation in Mendel's experiment?

a)

all show the recessive trait

b)

all show the dominant trait

c)

half show the dominant; half show the recessive

11.

One of the characteristics Mendel studied was pea shape. There were two shapes --smooth and wrinkled.

Examine the F1 and F2 results he got from his experiments.

What was surprising about the results Mendel found in the F2 generation of offspring?

a)

The recessive trait never showed up.

b)

The recessive trait showed up in the F2 generation when there had been no recessive trait in the F1 generation

c)

All F2 offspring showed the recessive trait.

12.

Mendel used the scientific method as he studied many pea plant characteristics (plant height, flower color, pea shape, etc.)

What scientific question was Mendel trying to find an answer to?

a)

How are traits inherited?

b)

Is one type of pea plant better than another?

c)

Which pea tastes the best?

13.

One of the characteristics Mendel studied was pea shape. There were two shapes --smooth and wrinkled.

Examine the F1 and F2 results he got from his experiments.

Suppose a plant inherits both dominant and recessive genes from its parent plant. Which form(s) of the trait would show up in that offspring plant (F1)?

a)

Recessive

b)

Dominant

c)

Dominant and recessive

14.

John has a genotype of EE for earlobe shape. What is another way to describe this genotype?

a)

heterozygous

b)

homozygous dominant

c)

homozygous recessive

15.

What happens to a recessive allele (e) when a dominant allele (E) is presented? (for complete dominance)

a)

Both the recessive and dominant traits will show.

b)

The recessive trait will show.

c)

The recessive trait will NOT show.

16.

Genes contain information for each of your traits. Where are the genes located?

a)

allele

b)

DNA

c)

chromosome

17.

In cats, there are two types of ears: normal and curly ears. A curly-eared cat mates with a normal-eared cat and all the kittens had curly ears. What type of trait are curly ears?

a)

Recessive

b)

Co-dominant

c)

Dominant

18.

Jack and Jill were brother and sister, but did not look alike at all. Jack had attached earlobes (recessive) and Jill has free earlobes (dominant). Jill knew her parents were heterozygous for earlobe shape, so she drew the following Punnett Square:

In the Punnett Square, the two letters EE are an example of what?

a)

a genotype

b)

a trait

c)

a phenotype

19.

Jack and Jill were brother and sister, but did not look alike at all. Jack had attached earlobes (recessive) and Jill has free earlobes (dominant). Jill knew her parents were heterozygous for earlobe shape, so she drew the following Punnett Square:

What type of earlobes do Jill's parents have?

a)

Both parents have attached earlobes

b)

One parent has attached earlobes and one parent has free earlobes

c)

Both parents have free earlobes

20.

Jack and Jill were brother and sister, but did not look alike at all. Jack had attached earlobes (recessive) and Jill has free earlobes (dominant). Jill knew her parents were heterozygous for earlobe shape, so she drew the following Punnett Square:

What is the probability of future offspring to have attached earlobes like Jack?

a)

75%

b)

25%

c)

50%

21.

Jack and Jill were brother and sister, but did not look alike at all. Jack had attached earlobes (recessive) and Jill has free earlobes (dominant). Jill knew her parents were heterozygous for earlobe shape, so she drew the following Punnett Square:

Jack's earlobes were different from the rest of the family. Which of these answers explains how this happened?

a)

Jack got one dominant gene from each parent.

b)

Jack got one recessive gene from each parent.

c)

Jack got one dominant gene from one parent and one recessive gene from the other parent.

22.

In dragons, green striped belly (T) is dominant to purple striped belly (t). If two dragons heterozygous for a green striped belly are crossed, what are the possible genotype combinations for the offspring?

a)

TT, tt only

b)

TT, Tt, tt

c)

Tt only

23.

A cat has six toes on each paw. Extra toes are a recessive trait (d). The cat mates with a heterozygous cat with the normal number of toes (D). What is the probability of the cats' offspring to have extra toes?

a)

25%

b)

50%

c)

75%

d)

100%

24.

Use the information in the table to answer the question. Assume complete dominance.

What is the phenotype for the genotype Dd?

a)

Light eyes

b)

Eye color

c)

Dark eyes

d)

Not enough information given

25.

Use the information in the table to answer the question. Assume complete dominance.

What is the genotype for someone with attached earlobes?

a)

EE

b)

ee

c)

Ee

26.

Humans have ______ pairs of chromosomes in their somatic cells.

a)

23

b)

46

c)

4

27.

The process of meiosis makes

a)

exact copies of the original cell.

b)

sex cells (egg and sperm).

c)

mutated cells.

d)

cells for growth and repair.

28.

Meiosis makes sperm and egg cells. In humans, sperm and egg cells each have _____ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with ______ chromosomes.

a)

23, 46

b)

50, 100

c)

46, 23

d)

2, 4

29.

The process of mitosis is important because it helps a body

a)

identify itself.

b)

grow and repair itself.

c)

produce sex cells.

d)

stay the same.

30.

The control center of the cell or the "brain" of the cell is the

a)

cytoplasm.

b)

cell membrane.

c)

nucleus.

d)

cell wall.

31.

A section of DNA that determines a trait is called a

a)

gene.

b)

mitosis.

c)

meiosis.

d)

cell membrane.

32.

In order for an offspring to display a recessive trait, what MUST be true about the parents of the offspring?

a)

Both parents must carry the recessive gene.

b)

Only one parent needs to carry the recessive gene.

c)

Neither parent can carry the recessive gene.

d)

Both parents must be homozygous dominant.

33.

The physical expression or appearance of a trait.

a)

eukaryotic

b)

karyotype

c)

phenotype

d)

genotype

34.

The letters or gene pair that represent a trait.

a)

genotype

b)

karyotype

c)

phenotype

d)

eukaryotic

35.

True or False

The Punnett Square is a tool used by geneticists to predict the EXACT trait an offspring will inherit.

a)

True

b)

False

36.

_______ is a branch of biology concerned with the study of genes, genetic variation, and heredity in organisms.

a)

Volcanology

b)

Genetics

c)

Physics

d)

Chemistry

37.

Which of the following is NOT part of the cell theory?

a)

All organisms are composed of cells.

b)

Cells are the basic unit of life.

c)

All cells come from the division of previous existing cells.

d)

All cells contain a nucleus.

38.

Which of the following ARE functions of the cell?

a)

Metabolism

b)

Response

c)

Homeostasis

d)

Growth

e)

Reproduction

39.

What part of the cell contains DNA?

a)

Cell Wall

b)

Cell Membrane

c)

Nucleus

d)

Mitochondria

40.

How many traits did Mendel look at in the peas?

a)

3

b)

7

c)

10

d)

5

41.

Two black-fur mice are bred, and have a litter shown in the picture. What is the most likely explanation for the white-fur offspring?

a)

One of the parents is heterozygous.

b)

Both of the parents are heterozygous.

c)

A mutation occurred.

d)

The parents' fur color has no influence on the offspring fur color.

42.

A pair of mice are bred several times, generating the following data table. What are the most likely genotypes of the parents?

a)

FF and ff

b)

FF and Ff

c)

Ff and Ff

d)

Ff and ff

43.

The two aliens shown below have offspring. Will the offspring inherit a tattoo?

a)

Definitely

b)

Probably

c)

Probably not (but possible)

d)

Definitely not

44.

The alien shown below reproduces asexually. Which alien could be her offspring?

a)

b)

c)

d)

45.

Two aliens (one with straight antenna and one with curly antenna) have many, many offspring, and every single one of the offspring has straight antenna. Which statement is true?

a)

Straight antenna are dominant, and curly antenna are recessive.

b)

Straight antenna are recessive, and curly antenna are dominant.

c)

Straight and curly antenna are codominant.

d)

Both straight and curly antenna are recessive

46.

A human mother is shown. Which trait is her daughter most likely to inherit?

a)

Rainbow hair

b)

Pierced nose

c)

Dark eyes

d)

Eyeliner

Genetics and Heredity Test

Total questions: 46

Worksheet time: 26mins

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