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WorksheetsDNA Replication Quiz
Total questions: 20
Worksheet time: 25mins
What is the structure of DNA?
quadruple helix
double helix
single strand
triple helix
Which enzyme is responsible for DNA replication?
RNA polymerase
DNA polymerase
Ligase
Helicase
What are Okazaki fragments?
Long, newly synthesized DNA fragments formed on the leading strand during DNA replication.
Short, pre-existing DNA fragments that are incorporated into the lagging strand during DNA replication.
Short, newly synthesized DNA fragments formed on the lagging strand during DNA replication.
Fragments of RNA that are synthesized during transcription.
What are the components of a DNA nucleotide?
ribose, phosphate group, nitrogenous base
deoxyribose, sugar group, nitrogenous base
deoxyribose, phosphate group, nitrogenous base
deoxyribose, phosphate group, nucleic acid
Explain the process of DNA replication.
DNA replication is the process by which RNA is copied to produce two identical RNA molecules.
DNA replication is the process by which a double-stranded RNA molecule is copied to produce two identical RNA molecules.
DNA replication is the process by which a single-stranded DNA molecule is copied to produce two identical DNA molecules.
DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules.
What is the role of helicase in DNA replication?
Helicase repairs damaged DNA strands during replication.
Helicase unwinds the DNA double helix during replication.
Helicase adds new nucleotides to the growing DNA strand.
Helicase stabilizes the DNA double helix during replication.
What is the significance of DNA replication?
DNA replication is only significant in certain types of cells.
DNA replication is not necessary for growth and repair.
DNA replication is essential for cell division, growth, and repair.
DNA replication is only important for cell division.
What is the difference between leading and lagging strands in DNA replication?
The leading strand is synthesized by DNA polymerase III, while the lagging strand is synthesized by DNA polymerase I.
The leading strand is synthesized in the 3' to 5' direction, while the lagging strand is synthesized in the 5' to 3' direction.
The leading strand is synthesized continuously, while the lagging strand is synthesized discontinuously.
The leading strand is synthesized discontinuously, while the lagging strand is synthesized continuously.
What is the role of ligase in DNA replication?
Ligase proofreads the newly synthesized DNA strands for errors.
Ligase joins Okazaki fragments and seals gaps in DNA replication.
Ligase adds new nucleotides to the growing DNA strand.
Ligase unwinds the DNA double helix during replication.
The enzyme ________ adds on the free nucleotides to the leading strand during DNA Replication
Topoisomerase
Polymerase
Helicase
Ligase
When does DNA Replication occur?
G1
G2
S phase
M phase
What does Chargaff's rule state?
A pairs with T and C pairs with U
A pairs with G and T pairs with C
A pairs with T and C pairs with G
A pairs with C and G pairs with U
