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WorksheetsExam review
Total questions: 14
Worksheet time: 22mins
The picture below shows an enzyme unwinding and unzipping DNA.
What is the name of this enzyme?
DNA Helicase
DNA Ligase
DNA polyermase
RNA Polymerase
Which is the role of DNA polymerase?
Unwinds the original DNA strand
Lays down RNA primer for new nucleotide bases.
Builds new strands by bringing in new nucleotide bases.
Remove Okazaki fragments for new nucleotides.
DNA replication takes place in eukaryotic cells during which phase?
G1
S
M
G0
During what phase of Mitosis do the chromosomes line up in the Middle
Metaphase
Prophase
Telophase
Anaphase
In which phase of Mitosis do the Chromosomes pull Apart
Metaphase
Prophase
Anaphase
Telophase
Cancer is defined as the
uncontrolled division of mutated cells
normal division of cells
normal DNA replication
abnormal ATP synthesis
A ________________is a critical point where stop and go signals can regulate the cycle
tumor
checkpoint
growth factor
oncogene
In DNA, cytosine pairs with
guanine
adenine
thymine
cytosine
Who was the scientist who used X-rays to "take a picture" of DNA which was eventually used to figure out the structure of DNA?
Rosalind Franklin
Watson and Crick
Maurice Wilkins
Sherlock and Watson
How many pairs of chromosomes do human cells contain?
23
46
16
32
DNA has a special structure called a
single helix
double helix
triple helix
ladder
What is cell differentiation?
Which of the following demonstrates base pairing rules to 5' - CAGGT - 3'
3' - TGGAC - 5'
3' - GTCCA - 5'
5' - GTCCA - 3'
5' - CAGGT - 3'
