WorksheetsProtein Synthesis
Total questions: 10
Worksheet time: 6mins
Which enzyme is not involved in the replication process?
Helicase
RNA polymerase
DNA polymerase
Ligase
Which statement is true of an mRNA?
it is translated in the nucleus
it enters the ribosome on the A site
it is translated in the 5' to 3' direction
it is catalysed by a reverse transcriptase enzyme
What is the function of DNA polymerase I during DNA replication?
it catalyses the synthesis of a short RNA primer
it catalyses the synthesis of Okazaki fragments
it catalyses the joining of Okazaki fragments
it catalyses the replacement of the primer with a DNA fragment
Which statements explain the role of ribosomes in protein synthesis?
ribosome contains protein and RNA
ribosome contains protein and RNA
ribosome act as anticodon binding site
the ribosome provides the site for formation of peptide bonds
Which statement is true of transcription?
the DNA polymerase is used to synthesise DNA
the antisense strand is used as a template
it begins with ATG and ends with TAG
Which enzyme is involved in protein synthesis?
Ligase
DNA polymerase
RNA polymerase
Helicase
Rearrange the following event of DNA replication in correct order
1. bonds between complementary bases form
2. DNA molecule uncoils
3. opposite strands separate
4. sugar-phosphate bonds form in the new strands
5. free nucleotide align with complementary nucleotides on each strand
2,5,3,1,4
2,3,5,1,4
2,5,3,4,1
3,2,5,4,1
DNA replicates by a semiconservative mechanism means that..
only one strand is copied
the two strands of a double helix hve identical base sequences
each double helix consists of one old and one newly synthesized strand
some portions of a single DNA strand are old, and other portions are newly synthesized
In DNA replication, a lagging strand is formed by
joining primers
joining leading strands
joining Okazaki fragments
joining primers, Okazaki fragments and leading strands
The genetic code is defined as a series of (a) in mRNA.
