Free Printable Unit 2 (pt1) Review

Free Printable Worksheets

Worksheets

Unit 2 (pt1) Review

Total questions: 59

Worksheet time: 57mins

Name

Class

Date

1.

In RNA, Uracil pairs with ______.

a)

cytosine

b)

adenine

c)

guanine

d)

thymine

2.

The process to go from DNA to mRNA is _______

a)

translation

b)

transcription

c)

replication

3.

The process to go from mRNA to a protein is called ____

a)

transcription

b)

rRNA

c)

replication

d)

translation

4.

DNA holds the code for

a)

lipids

b)

carbohydrates

c)

protein

d)

sugar

5.

Choose the nucleotide sequence of the RNA strand that would be complementary to the following strand:
GTAGTCA

a)

UATUAGA

b)

ACGACTG

c)

CAUCAGU

d)

CATCAGT

6.

The main function of tRNA is to...

a)

carry a message that, when translated, forms proteins

b)

form a portion of ribosomes

c)

string together complementary RNA and DNA strands

d)

bring amino acids from the cytoplasm to the ribosomes

7.

What amino acid is represented by the codon UUA?

a)

Phenylalanine

b)

Tyrosine

c)

Leucine

d)

Stop codon

8.

What process is going on in this photo?

a)

Transcription

b)

Translation

c)

Replication

d)

All the above

9.

Which component of DNA determines the traits of an organism?

a)

Nitrogen Bases

b)

Sugar-Phosphate Backbone

c)

Hydrogen bonds

10.

What is the location in the cell for translation?

a)

nucleus

b)

mitochondria in cytoplasm

c)

ribosome in cytoplasm

d)

chloroplast in cytoplasm

11.

What is the three base sequence of mRNA that codes for a single amino acid?

a)

Anticodon

b)

Codon

c)

Protein

12.

What is the location in the cell for transcription?

a)

nucleus

b)

cytoplasm

c)

ribosome

d)

mitochondria

13.

Translation is the process where

a)

mRNA is created in the Nucleus

b)

mRNA is decoded to form a protein

c)

glucose molecules are made

d)

is where lipids are synthesised

14.

Does the order of amino acids in a protein matter?

a)

YES!

b)

NO!

15.

What process is happening in the diagram?

a)

transcription

b)

translation

c)

dna replication

d)

mitosis

16.

During which phase of the cell cycle does the cell spend the most time?

a)

Mitosis

b)

Cytokinesis

c)

Interphase

17.

During which part of the cell cycle does the cell divide?

a)

Interphase

b)

Mitosis

c)

S phase

18.

During which part of the cell cycle is DNA copied?

a)

Mitosis

b)

Cytokinesis

c)

S phase

19.

During which parts of the cell cycle does the cell grow?

a)

G1 and G2

b)

G1 and S

c)

M phase and cytokinesis

20.

Which phase of mitosis is shown in the picture?

a)

Prophase

b)

Anaphase

c)

Telophase

21.

Which phase of mitosis is shown in the picture?

a)

Interphase

b)

Metaphase

c)

Telophase

22.

Which phase of mitosis is shown in the picture?

a)

Prophase

b)

Metaphase

c)

Anaphase

23.

Which phase of mitosis is shown in the picture?

a)

Prophase

b)

Telophase

c)

Metaphase

24.

Which phase of mitosis is shown in the picture?

a)

Prophase

b)

Telophase

c)

Metaphase

25.

What is shown in the picture?

a)

Mitosis

b)

Interphase

c)

Cytokinesis

26.

What is the purpose of the cell cycle?

a)

To create new daughter cells

b)

To prevent cancer from developing

c)

To help the body fight viruses and bacteria

27.

Uncontrolled cell division which usually leads to tumors and disease is called:

a)

Metaphase

b)

Cytokinesis

c)

Cancer

d)

Diabetes

28.

Which type of cell divides most frequently?

a)

Liver cell

b)

Skin cell

c)

Blood cell

d)

Nerve cell

29.

Which of these cells divides the least?

a)

Liver cell

b)

Skin cell

c)

Blood cell

30.

Which of these cells never divides?

a)

Skin cell

b)

Liver cell

c)

Nerve cell

d)

Blood cell

31.

The picture below shows the steps of DNA replication beginning with step one and ending with step three.

Because you are reusing the old, or parent, DNA strand DNA replication is said to be

a)

Semi- Conservative

b)

Semi-discontinuous

c)

Continuous

d)

Fully-Conserveative

32.

The picture below shows an enzyme unwinding and unzipping DNA.

What is the name of this enzyme?

a)

DNA Helicase

b)

DNA Ligase

c)

DNA polyermase

d)

RNA Polymerase

33.

Match he nucleotide with its complementary nucleotide. (DNA to DNA).

Adenine -

a)

Thymine

b)

Guanine

c)

Cytosine

34.

Match he nucleotide with its complementary nucleotide. (DNA to DNA).

Cytosine-

a)

Thymine

b)

Guanine

c)

Adenine

35.

Which enzyme is responsible for adding the free nucleotides to the replicating DNA?

a)

DNA Helicase

b)

DNA Ligase

c)

DNA polyermase

d)

RNA Polymerase

36.

Which is the first step?

a)

DNA Helicase unwinds original DNA strand

b)

RNA Primase lays down RNA primer for new nucleotide bases.

c)

DNA polymerase builds new strands by bring in new nucleotide bases.

d)

Ligase knits together fragments on lagging strand

37.

Which is the second step?

a)

DNA Helicase unwinds original DNA strand

b)

RNA Primase lays down RNA primer for new nucleotide bases.

c)

DNA polymerase builds new strands by bring in new nucleotide bases.

d)

Ligase knits together fragments on lagging strand

38.

Which is the third step?

a)

DNA Helicase unwinds original DNA strand

b)

RNA Primase lays down RNA primer for new nucleotide bases.

c)

DNA polymerase builds new strands by bring in new nucleotide bases.

d)

Ligase knits together fragments on lagging strand

39.

Which is the fourth step?

a)

DNA Helicase unwinds original DNA strand

b)

RNA Primase lays down RNA primer for new nucleotide bases.

c)

DNA polymerase builds new strands by bring in new nucleotide bases.

d)

Ligase knits together fragments on lagging strand

40.

Which letter in the picture below depicts the leading strand in DNA replication?

a)

A

b)

C

c)

B

d)

None of the above

41.

Which letter in the picture below depicts the lagging strand in DNA replication?

a)

A

b)

C

c)

B

d)

None of the above

42.

Which letter in the picture below depicts the replication fork in DNA replication?

a)

A

b)

C

c)

B

d)

None of the above

43.

If a person suffered from a disorder where their DNA fragments were unable to fill in the missing slots in between the fragments of the lagging strand, they would most likely have a disorder that affected which enzyme?

a)

DNA Helicase

b)

DNA Ligase

c)

DNA polyermase

d)

RNA Polymerase

44.

DNA replication runs from ______' to _____' and is said to be ______________________

a)

5, 3, antiparallel

b)

3, 5, antiparallel

c)

5, 3, parallel

d)

3, 5, parallel

45.

Okazaki fragments appear on which strand of DNA during DNA replication?

a)

lagging

b)

leading

46.

The directionality of DNA is said to be ___________, because it is side by side by goes in opposite directions.

a)

Anti-directional

b)

Parallel

c)

Anti-parallel

d)

Anti-uniform

47.

Which sequence of DNA bases would pair with this partial strand
CAT TCA CTG

a)

ATG TGA CAG

b)

TAC ACT GTC

c)

GTA AGT GAC

d)

CAT TCA CTG

48.

The enzyme that unwinds the DNA to prepare for replication

a)

helicase

b)

replicase

c)

polymerase

d)

synthase

49.

order of replication

a)

3, 4, 2, 1

b)

3, 1, 4, 2

c)

2, 1, 4, 3

d)

3, 4, 1, 2

50.

A process in which DNA has the unique ability to make an exact copy of itself.

a)

Replication

b)

Translation

c)

Transcription

51.

Place the following in sequential order
1. Recoil
2. Straightens the double helix
3. Breaks Hydrogen bonds
4. Adds Free nucleotides

a)

1, 2, 3, 4

b)

3, 4, 2, 1

c)

3, 2, 4, 1

d)

2, 3, 4, 1

52.

Why does DNA replicate?

a)

To create another copy for the new cell

b)

To create a duplicate copy in case the original gets damaged

c)

To create a new copy to replace the damaged original

53.

DNA replication results in

a)

2 completely new DNA molecules

b)

2 DNA molecules that each contain a strand of the original

c)

1 new DNA molecule and 1 old

d)

1 new molecule of DNA

54.

Enzyme that connects the DNA to the backbone (glues)

a)

Ligase

b)

Polymerase

c)

Helicase

d)

Primase

55.

Enzyme that breaks hydrogen bonds (unzips)

a)

Ligase

b)

Polymerase

c)

Primase

d)

Helicase

56.

The new DNA strand formed after DNA replication is an exact copy of its parent strand

a)

True

b)

False

57.

A DNA nucleotide contains all of the following, except...

a)

Deoxyribose

b)

Phosphate group

c)

Nitrogenous base

d)

Cholesterol

58.

What is the shape of DNA?

a)

Double helix

b)

Triple helix

c)

Flat, bilayer

d)

Three-pronged rigid ladder

59.

Match he nucleotide with its complementary nucleotide. (DNA to DNA).

Adenine -

a)

Thymine

b)

Guanine

c)

Cytosine

Reset

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