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Worksheets6.1 and 6.2 DNA Replication, Translation and Transcription
Total questions: 20
Worksheet time: 19mins
If a strand of DNA had bases in the following order - ATCCGTC, what would be the transcribed mRNA sequence?
TAGGCAG
UAGGCAG
TUGGCUG
None of the above are correct
Which of the following polypeptides are coded for by the mRNA sequence
5' AUG GUU AAA 3'
Val, Lys, Phe
Met, Asp, Phe
Met, Val, Lys
Ile, Gln, Lys
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 enzyme is responsible for adding the free nucleotides to the replicating DNA?
DNA Helicase
DNA Ligase
DNA polyermase
RNA Polymerase
Which letter in the picture below depicts the leading strand in DNA replication?
A
C
B
None of the above
Okazaki fragments appear on which strand of DNA during DNA replication?
lagging
leading
Characteristics of DNA polymerase that affect how replication proceeds are that it
It can only attach new nucleotides to the 3' end of existing nucleotides
It can only attach new nucleotides to the 5' end of existing nucleotides
It can only attach new nucleotides to the 3' end of existing DNA nucleotides
It can only attach new nucleotides to the 5'end of existing DNA nucleotides
The 3' carbon of a ribose or deoxyribose sugar is bonded to a ________, while the 5' carbon is bonded to a ___________
phosphate, nitrogen base
nitrogen base, phosphate
phosphate, hydroxyl group (OH)
hydroxyl group (OH), phosphate
The chemical bonds holding molecules X and Y together are
Covalent bonds
Hydrogen bonds
ionic bonds
peptide bonds
The type of chemical bond holding molecules X and W together are
Covalent bonds
Hydrogen bonds
ionic bonds
peptide bonds
Which letter in this diagram is pointing to codon(s)?
H
B
C
D
Which letter in this diagram is pointing to anticodon(s)?
H
B
C
D
The following diagram shows the steps of gene expression. What type of cell could this diagram NOT be representing?
human pancreatic cell
a mesophyll cell in an oak tree leav
a cell in the hyphae of a mushroom
an E. coli bacteria cell
The following diagram shows the steps of gene expression. Once mRNA editing step is finished, what does the final transcript consist of?
amino acids
exons
introns and exons
introns
