wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

DNA, Replication, Transcription and Translation

Total questions: 24

Worksheet time: 19mins

Name
Class
Date
1.

In replication, C pairs with

a)

U

b)

G

c)

A

d)

T

2.

STRUCTURE: One difference between RNA and DNA is -

a)

RNA has thymine where DNA has ademine

b)

DNA is single stranded where RNA is double stranded

c)

DNA is made in the nucleus where RNA is made in the ribosomes

d)

RNA is single stranded where DNA is double stranded

3.

STRUCTURE: One difference between RNA and DNA is -

a)

RNA has thymine where DNA has ademine

b)

DNA is single stranded where RNA is double stranded

c)

DNA is made in the nucleus where RNA is made in the ribosomes

d)

RNA is single stranded where DNA is double stranded

4.

STRUCTURE: One difference between RNA and DNA is -

a)

RNA has thymine where DNA has ademine

b)

DNA is single stranded where RNA is double stranded

c)

DNA is made in the nucleus where RNA is made in the ribosomes

d)

RNA is single stranded where DNA is double stranded

5.

During transcription, whIch enzyme is used to make RNA?

a)

Helicase

b)

Transcriptase

c)

DNA Polymerase

d)

RNA Polymerase

6.

In order for DNA instructions to move from the nucleus to the ribosomes in the cytoplasm of a cell, an RNA copy of a DNA strand must be made. This process, which takes place in the cell nucleus, is called?

a)

translation

b)

mutation

c)

DNA replication

d)

transcription

7.

Which of the following is the complementary mRNA sequence to this DNA strand: AACTGAA?

a)

UUGACUU

b)

TTGACTT

c)

AACTGAA

d)

AACUGAA

8.

Once replication in a DNA molecule is complete, each new DNA molecule contains ________________.

a)

two new strands

b)

3 exact copies of strands

c)

one new strand and one old

d)

two old strands

9.

What are the key enzymes involved in DNA replication and what are their functions?

a)

Protein helicase, Protein polymerase, and Protein ligase

b)

ATPase, GTPase, and UTPase

c)

DNA helicase, DNA polymerase, and DNA ligase

d)

RNA helicase, RNA polymerase, and RNA ligase

10.
Which of these are 3 parts of an RNA nucleotide?
a)
Deoxyribose, thymine, phosphate
b)
Ribose, thymine, phosphate
c)
Ribose, uracil, phosphate
d)
Deoxyribose, uracil, phosphate
11.
In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of
a)
cytosine
b)
guanine
c)
thymine
d)
uracil
12.
What is the function of DNA helicase?
a)
Attach new nucleotides
b)
To unzip the strands of DNA
c)
Remove nucleotides
d)
To perform crossing over
13.
What does tRNA do?
a)
provides information from DNA to ribosomes
b)
transfers amino acids to the ribosomes
c)
makes up ribosomes
d)
builds proteins
14.
What are the functions of genes?
a)
instructions for producing proteins
b)
instructions for producing DNA
c)
instructions for producing lipids
d)
they have no function
15.
If a segment of double-stranded DNA has 40 percent A, how much of it is C?
a)
40
b)
10
c)
15
d)
20
16.
What part of a nucleotide accounts for the genetic variation between individuals?
a)
phosphate
b)
nitrogenous base
c)
deoxyribose
d)
sugar
17.
Which of the following is not a base found in DNA?
a)
adenine
b)
thymine
c)
cytosine
d)
uracil
18.

The process of creating mRNA from DNA strand is called

a)

replication

b)

transcription

c)

translation

19.

Each rung of the DNA ladder is made up of a

a)

pair of nitrogen bases

b)

pair of carbon bases

c)

single nitrogen base

d)

single carbon base

20.

What are the subunits of DNA and RNA?

a)

simple sugars

b)

amino acids

c)

nucleotides

d)

carbohydrates

21.

What is the complementary DNA to the following DNA strand?

TAT-TAG-ATT-ACA

a)

TAT-TAG-ATT-ACA

b)

ATA-ATC-TAA-TGT

c)

UTU-UTC-TUU-TGT

d)

AUA-AUC-UAA-UGU

22.

Transcribe the following DNA strand into the correct mRNA strand?

TGC-GGA-CTC-CTC

a)

ACG-CCT-GAG-GAG

b)

TCC-GGT-CTC-CTC

c)

UGC-GGA-CUC-CUC

d)

ACG-CCU-GAG-GAG

23.

Where is the DNA located inside the cell?

a)

Ribosome

b)

Endoplasmic reticulum

c)

Golgi apparatus

d)

Nucleus

24.

DNA replication results in two DNA molecules,

a)

Each with two new strands

b)

Each with one original strand and one new strand

c)

Each with two original strands

d)

One with two new strands and the other with two original strands