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Genetics Exam 1 Review Quiz

Total questions: 20

Worksheet time: 1hrs 22mins

Name
Class
Date
1.

What does DNA Stand for?

a)

Nucleic Acids

b)

Deribosenucleic Acid

c)

Deoxyribonucleic Acid

d)

Deoxynucleic Acid

2.

Which of the following is NOT a nucleotide

a)

Adenine

b)

Guanine

c)

Absorbine

d)

Cytosine

3.

DNA is a code that tells our body how to make ___________

a)

Cells

b)

Protiens

c)

Genes

d)

Chromosomes

4.

The DNA molecule is found in what part of the cell

a)

Nucleus

b)

Cytoplasm

c)

Cell Membrane

d)

Intracellular space

5.

According to Chargoff's Rule, if I had a DNA molecule with 27% Adenine, it would have to have _________ % Thymine

a)

23%

b)

25%

c)

27%

d)

29%

6.

According to Chargoff's Rule, if I have a DNA molecule with 18% Thymine, it must have __________ % Guanine

a)

64

b)

18

c)

30

d)

32

7.

A person who has both the dominant and recessive version of an allele is ____________

a)

Homozygous

b)

Polyzygous

c)

Recessive

d)

Heterozygous

8.

A person who has both a dominant allele and a recessive allele would display which phenotype

a)

The recessive phenotype

b)

50% chance of displaying either

c)

The dominant phenotype

d)

A mix of the two alleles

9.

___________ is the process of passing on traits to offspring

a)

Biology

b)

Cloning

c)

Heredity

d)

Breeding

10.

In a Punnett Square with a homozygous dominant father and a homozygous recessive mother, what percent of offspring will show the recessive phenotype?

a)

0%

b)

25%

c)

50%

d)

100%

11.

In a Punnett Square with a heterozygous father and a heterozygous mother, what percent of offspring will display the dominant phenotype?

a)

0%

b)

25%

c)

50%

d)

75%

12.

A genotype represents

a)

The two alleles an organisms inherits from its parents

b)

The physical appearance of a trait

c)

The full molecule of DNA an offspring will have

d)

How many chromosomes an organism has

13.

In a Punnett square, the offspring of a homozygous dominant crossing can't show the recessive trait.

a)

True

b)

False

14.

A human has how many chromosomes

a)

21

b)

22

c)

23

d)

46

15.

After a single human cell has gone through S-phase, how many chromosomes does it contain?

a)

13

b)

23

c)

46

d)

42

16.

An organism with the genotype "Ee" would show what phenotype?

a)

Dominant

b)

recessive

c)

codominant

d)

a mix of dominant and recessive

17.

I breed Rose with red flowers and a rose with white flowers. The offspring all have pink flowers. This is known as

a)

Incomplete dominance

b)

Punnett Cross

c)

Codominance

d)

Antidominance

18.

This spotted diary cow's hair color shows

a)

Incomplete dominance

b)

Codominance

c)

Recessive dominance

d)

Speckled dominance

19.

In a one-factor cross, if I breed a homozygous recessive and a heterozygous organism, the offspring would have have what phenotype

a)

100% Dominant

b)

75% Dominant

c)

50% Dominant

d)

25% Dominant

20.

Adenine, Thymine, Cytosine and Guanine make up the

a)

Nucleus

b)

Proteins

c)

Nitrogen bases

d)

Ribosomes