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WorksheetsDNA Structure & Replication
Total questions: 10
Worksheet time: 5mins
What are the three parts of every nucleotide?
Phosphate
Ribose Sugar
Deoxyribose Sugar
Nitrogenous Base
What are the individual units that make up a DNA molecule called?
RNA
Nucleotides
DNA Helicase
Chromosomes
If one strand of a DNA molecule has a sequence of nucleotides that reads: ATCCGCTAT. What will the other strand of the DNA molecule be?
ATCCGCTAT
AAAATTTCGCG
TAGGCGATA
ATCCCGATA
During which phase of the cell cycle does DNA go through replication?
G1
G2
S
Mitosis
Which of the following best describes the role that DNA plays in our cells?
DNA is stored up energy to be used by the cell when resources are low.
DNA is responsible for storing the genetic information that makes us who we are.
DNA is responsible for storing some information, but it is mostly used to give cells structure and support.
DNA is responsible for making new cells in the process of cell division.
During DNA replication, the double helix of DNA is separated. If one strand's sequence is: TTACGT, what will the sequence of bases be on the new strand that is formed.
AATGCA
TTACGT
AAUGCG
GGCCTTA
What is the name of the enzyme responsible for unzipping the DNA double helix during the process of replication?
DNA Polymerase
Chromosomase
DNA Helicase
Replicationase
What is the name of the enzyme responsible for adding new nucleotides after the DNA has been unzipped?
DNA Polymerase
DNA Helicase
Replicationase
Chromosomase
In DNA nucleotides, Adenine (A) always forms a base pair with __________ and Guanine (G) always forms a base pair with ____________.
Uracil, Thymine
Thymine, Uracil
Thymine, Cytosine
Uracil, Cytosine
Which of the following best describes why our cells need to make a copy of all of the DNA before they go through cell division?
Our cells make a copy before hand to make sure that the newly produced daughter cells will both have different information from each other.
Our cells make a copy before division to make sure that each newly produced daughter cell has an exact copy of the DNA information after cell division.
Our cells undergo replication first otherwise both of the newly formed daughter cells would have double the amount of DNA that they need.
It doesn't matter when cells make a copy of their DNA, it can be done before or after cell division without effecting anything.
