NEW
Font size
S
M
L
XL
WorksheetsUnit 5: Day 2
Total questions: 28
Worksheet time: 35mins
Name
Class
Date
1.
What is the difference between DNA and RNA from the point of view of the nitrogenous bases that are present in their nucleotides?
a)
In DNA, nucleotides can be made up of A, T, C, G. In RNA, nucleotides can also contain A, C or G; however, instead of T, they contain U.
b)
Purine and Pyrimidine
c)
Pyrimidine: Thymine, Cytosine (Urical)
d)
DNA, RNA
2.
Which of these is NOT found in RNA?
a)
ribose sugar
b)
uracil
c)
cytosine
d)
thymine
3.
Which of these is NOT found in RNA?
a)
cytosine
b)
uracil
c)
deoxyribose sugar
d)
adenine
4.
Determined that in DNA guanine=cytosine and adenine=thymine:
a)
Erwin Chargaff
b)
James Watson
c)
Francis Crick
d)
Leonard Jacobs
5.
The structure of DNA can be described as a:
a)
trapeziod
b)
double helix
c)
concentric circle
d)
acute angle
6.
Which of these does NOT fit with DNA:
a)
cytosine
b)
single strand
c)
double strand
d)
deoxyribose
7.
In DNA, adenine always pairs with:
a)
uracil
b)
cytosine
c)
guanine
d)
thymine
8.
One difference between RNA and DNA is that DNA is a:
a)
single strand
b)
double strand
9.
In RNA, thymine is replaced with:
a)
guanine
b)
cytosine
c)
adenine
d)
uracil
10.
DNA makes a copy of itself during this process:
a)
transcription
b)
translation
c)
replication
d)
copification
11.
Which is the CORRECT match?
a)
guanine=adenine
b)
cytosine=thymine
c)
adenine=thymine
d)
thymine=cytosine
12.
Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
13.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
14.
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
15.
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
16.
What determines the code, or information, of a DNA molecule?
a)
the shape (structure) of the nitrogen bases
b)
the order (sequence) of the nitrogen bases
c)
the color of the nitrogen bases
d)
the frequency (number) of nitrogen bases
17.
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
18.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
19.
Nitrogenous bases are joined by which type of bond?
a)
polar bonds
b)
ionic bonds
c)
covalent bonds
d)
hydrogen bonds
20.
Replicate the following strand of DNA:
AATCATGGA
AATCATGGA
a)
AATCATGGA
b)
TTAGTACCT
c)
UUAGUACCU
d)
GGATAUCUA
21.
The enzyme that unzips the DNA to prepare for replication
a)
helicase
b)
replicase
c)
polymerase
d)
synthase
22.
DNA replication results in two DNA molecules,
a)
each one with two original strands
b)
each one with two new strands
c)
each one with one new strand and one original strand
d)
one with two new strands and the other with two original strands
23.
order of replication
a)
3, 2, 1, 4
b)
2, 1, 4, 3
c)
2, 3, 1, 4
d)
3, 4, 1, 2
24.
A process in which DNA has the unique ability to make an exact copy of itself.
a)
Replication
b)
Translation
c)
Transcription
25.
What is the correct complimentary strand for the following DNA?ATCGAG
a)
TACGAG
b)
ATCGAG
c)
TAGCTG
d)
TAGCTC
26.
The drawing shows the structure of what molecule?
a)
A DNA molecule
b)
A lipid molecule
c)
A carbohydrate molecule
d)
A protein molecule
27.
In what phase of the cell cycle does DNA replication take place?
a)
G1
b)
S
c)
G2
d)
M
28.
What are the three components of a nucleotide?
a)
sugar, hydrogen, nitrogen base
b)
sugar, oxygen, nitrogen base
c)
sugar, phosphate, nitrogen base
d)
sugar, phosphate, protein
Reset
