WorksheetsBiology: DNA Replication Review
Total questions: 15
Worksheet time: 15mins
During DNA replication, a DNA strand that has the bases CTAGGT produces a strand with the bases:
AGCTTG
GATCCA
TCGAAC
GAUCCA
In both prokaryotes and eukaryotes, DNA replication happens
before cell division.
in the nucleus
only to telomeres
around the histones
What enzyme works to add DNA to ends of chromosomes in rapidly dividing cells such as those found in an embryo, to prevent genes from being lost during replication?
DNA polymerase
histones
telomerase
chromatin
What nucleotide is going to be opposite from thymine?
adenine
cytosine
guanine
uracil
During replication, what enzyme is responsible for building the complementary strand?
histones
nucleosomes
DNA polymerase
chromatin
In eukaryotes, DNA
is located in the nucleus
floats freely in the cytoplasm
is located in the ribosomes
is circular
DNA replication results in two DNA molecules,
each with two new strands.
one with two new strands and the other with two original strands.
each with one new strand and one original strand.
each with two original strands.
In both prokaryotes and eukaryotes, how many copies of the DNA are left after replication?
1
2
3
4
What type of sugar is in DNA?
glucose
lactose
deoxyribose
ribose
Which of the following forms a base pair with guanine?
uracile
cytosine
thymine
adenine
Which of the following is a nucleotide found in DNA?
ribose + phosphate group + thymine
ribose + phosphate group + uracil
deoxyribose + phosphate group + uracil
deoxyribose + phosphate group + cytosine
When reading DNA, we always start the the ____ end and end at the ____ end.
5’ prime, 3’ prime
3’ prime, 5’ prime
longest end, shortest end
top, bottom
What type of bonds hold the two nitrogen base pairs together in the middle of DNA?
ionic
polar
hydrogen
covalent
Which enzyme proofreads the new strands to make sure they are a copy of the original?
DNA polymerase
DNA amylase
DNA primase
DNA ligase
To begin DNA replication, we first need to unzip the double helix ladder of DNA. What enzyme is responsible for unzipping the DNA strands?
histones
DNA helicase
DNA polymerase
chromatin
