Worksheetsexpression of biological information2
Total questions: 20
Worksheet time: 21mins
In an analysis of the DNA nucleotide composition to see which bases are
equivalent in concentration, which of the following would be TRUE?
A = C
A = G and C = T
A + C = G + T
A + T = G + C
Which of the following is the major enzyme that involved in DNA
replication?
I. Helicase
II. Reverse transcriptase
III. Topoisomerase
IV. DNA polymerase
V. Aminoacyl-tRNA synthetase
I, III and IV
I, III and V
I,II, III and IV
II, III, IV and V
Which of the following start the synthesis of a new DNA?
RNA primer
DNA polymerase
Okazaki fragment
DNA ligase
What is the role of DNA ligase in DNA replication?
Synthesize of short RNA primer by adding RNA nucleotide
Replaces the RNA primer by adding the DNA nucleotide
Join Okazaki fragment at lagging strand forming phosphodiester bond
Unwind the double stranded DNA to become single stranded DNA
In DNA
replication, new nucleotides are added to a growing DNA by…………………
DNA helicase
DNA polymerase III
RNA polymerase
RNA primer
AATCATGGA
1. Recoil
2. Straightens the double helix
3. Breaks Hydrogen bonds
4. Adds Free nucleotides
