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Worksheets2024 Biol101 Test2 feedback Tut - G2P
Total questions: 10
Worksheet time: 10mins
1. What was the primary aim of the Hershey-Chase experiment, where bacteriophage DNA and bodies were labelled with radioactive phosphorus and sulphur, respectively?
To determine the structure of DNA.
To elucidate the role of proteins in genetic inheritance.
To investigate the replication mechanism of DNA.
To confirm that DNA, not protein, is the genetic material of bacteriophages.
To study the role of RNA in gene expression
What is the difference between the 5' and 3' end of a polynucleotide?
The 5' end has a hydroxyl group, while the 3' end has a phosphate group.
The 5' end has a purine base, while the 3' end has a pyrimidine base.
The 5' end has a pyrimidine base, while the 3' end has a purine base.
The 5' end is involved in transcription, while the 3' end is involved in translation
The 5' end has a phosphate group, while the 3' end has a hydroxyl group
An RNA nucleotide consists of ______.
a ribose sugar, a phosphate group and a nitrogenous base
a sugar and a phosphate group
a deoxyribose sugar, a phosphate group and a nitrogenous base
a deoxyribose sugar and a nitrogenous base
a phosphate group and a nitrogenous base
The resulting daughter molecules in DNA replication contain one strand of the original parental DNA and one new strand. What is the explanation for this phenomenon?
DNA replication is conservative.
DNA replication is not conservative.
DNA replication is semiconservative.
RNA synthesis is conservative.
RNA synthesis is semiconservative.
Select the reason why the leading and lagging strands are synthesized differently during DNA replication.
The origins of replication occur only at the 5′ end.
Helicases and single-strand binding proteins work at the 5′ end.
DNA polymerase can join new nucleotides only to the 3′ end of a pre-existing strand, and the strands are antiparallel.
DNA ligase works only in the 3′ → 5′ direction.
Primase can only bind one primer on the leading strand
Give the label for A on the image
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Give the label for B on the image
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Give the label for C on the image
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Give the label for D on the image
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Give the label for E on the image
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