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Worksheets

Unit 7

Total questions: 35

Worksheet time: 35mins

Name
Class
Date
1.

What are the four nitrogen bases present in DNA?

a)

adenine, lysine, guanine, cytosine

b)

adenine, uracil, guanine, cytosine

c)

cytosine, thymine, lysine, adenine

d)

cytosine, guanine, thymine, adenine

2.

What are the building blocks of DNA?

a)

proteins

b)

starches

c)

nucleotides

d)

RNA

3.

What are the 3 parts of a nucleotide?

a)

phosphate, starch, hydrogen bases

b)

sugar, phosphate, nitrogen base

c)

nitrogen bases, DNA, sugar

d)

none of the above

4.
Which 2 molecules form the sides (backbone) of the DNA ladder?
a)
deoxyribose sugar and adenine
b)
deoxyribose sugar and a hydrogen bond
c)
deoxyribose sugar and the nucleus
d)
deoxyribose sugar and phosphate
5.
What is the correct complimentary strand for the following DNA?ATCGAG
a)
TACGAG
b)
ATCGAG
c)
TAGCTG
d)
TAGCTC
6.

The structure of DNA can best be described as a

a)

single strand

b)

triple chain

c)

double helix

d)

short line

7.

Where in the cell is most of the DNA stored?

a)

cytoplasm

b)

nucleus

c)

cell membrane

d)

ribosomes

8.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
9.
What is the complement to the DNA strand below:
5'-ATGCCAT-3'
a)
5'-TACGGTA-3'
b)
3'-TACGGTA-5'
c)
3'-ATGGCAT-5'
d)
5'-ATGGCAT-3'
10.
The enzyme that unzips the DNA to prepare for replication
a)
helicase
b)
replicase
c)
polymerase
d)
synthase
11.
A process in which DNA has the unique ability to make an exact copy of itself.
a)
Replication
b)
Translation
c)
Transcription
12.
RNA contains the sugar
a)
ribose
b)
deoxyribose
c)
glucose
d)
lactose
13.
Which of the following statements is true?
a)
DNA is single-stranded
b)
RNA is single-stranded
c)
DNA contains uracil
d)
RNA contains deoxyribose
14.
What is the difference between DNA and RNA in terms of bases?
a)
RNA contains uracil in place of thymine
b)
RNA contains uracil in place of adenine
c)
RNA contains uracil in place of guanine
d)
RNA contains uracil in place of  cytosine
15.
Which type of RNA takes the instructions from the nucleus to the cytoplasm?
a)
mRNA
b)
tRNA
c)
rRNA
d)
RNA polymerase
16.
What is the template for mRNA?
a)
DNA
b)
tRNA
c)
rRNA
d)
proteins
17.
What is the product of translation?
a)
DNA
b)
mRNA
c)
tRNA
d)
proteins
18.
How many nucleotides make a codon?
a)
1
b)
2
c)
3
d)
6
19.
A monomer of DNA is called a(n)
a)
Monosaccharide
b)
Amino Acid
c)
Triglyceride
d)
Nucleotide
20.

What are proteins composed of?

a)

DNA

b)

A Single Helix

c)

Amino Acids

d)

RNA

21.

What does DNA stand for?

a)

Double Ribonucleic Acid

b)

Do Not Answer

c)

Does Not Apply

d)

Deoxyribonucleic Acid

22.

What shape is RNA classified as?

a)

Double Helix

b)

Single Helix

c)

Ladder

d)

Triple Helix

23.

What does mRNA stand for?

a)

Messenger RNA

b)

Maximum RNA

c)

Manager RNA

d)

Master RNA

24.

Where does translation occur?

a)

Nucleus

b)

Ribosome

c)

Lysosomes

d)

Mitochondria

25.

Where does transcription occur?

a)

Cytoplasm

b)

Cell Membrane

c)

Nucleus

d)

Ribosome

26.
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
27.
Which of the following is created in the nucleus and carries the genetic code to the cytoplasm?
a)
DNA
b)
tRNA
c)
mRNA
d)
rRNA
28.
which process is shown?
a)
diffusion
b)
repiration
c)
recombination
d)
translation
29.
What molecules do both DNA and RNA contain?
a)
uracil
b)
nucleotides
c)
thymine
d)
deoxyribose
30.
The DNA sequence ATCAGCGCTGGC is part of a gene. how many amino acids are coded for by this message?
a)
4
b)
8
c)
12
d)
20
31.
One human disease is caused by a change in one codon in a gene from GAA to GUA. The disease is a result of 
a)
a mutation
b)
crossing-over
c)
a meiosis error
d)
polyploidy
32.
DNA sequence is ACAGTGC. How would this be coded on mRNA?
a)
TGTCACG
b)
UGUCACG
c)
GUGACAU
d)
CACUGUA
33.
What is the relationship between a protein, the cell, and DNA?
a)
DNA is produced by protein which is produced in the cell
b)
Protein is composed of DNA which is produced in the cell
c)
DNA controls the production of protein in the cell
d)
A cell is composed of DNA and protein
34.
Genetic info flows in one direction. Which best represents this flow?
a)
DNA-protein-RNA
b)
Protein-RNA-DNA
c)
RNA-protein-DNA
d)
DNA-RNA-protein
35.

How many nucleotides equal 1 amino acid?

a)

1

b)

2

c)

3

d)

4

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