DNA Replication Basics Quiz

DNA exhibits.................

• Repetitive Replication

• Conservative replication

• Semi-conservative replication

• Dispersive Replication

Which are purine bases?

• 1 and 3

• 1, 2 and 3

• 4 and 5

• 2, 4 and 5

What is the main difference between a purine nucleotide and a pyrimidine nucleotide?

• purines have 1 ring, pyrimidines have 2

• Pyrimidines have 1 ring, purines have 2

• purines are more abundant

• pyrimidines are more abundant

What is a Nucleoside?

• A pentose

• A pentose + a nitrogen base

• A pentose + a nitrogen base + a phosphoric acid

• A nitrogen base + a phosphoric acid

____ states that DNA from any cell should have a 1:1 ratio of pyrimidine and purine bases.

• Probability rule

• Wilkin's rule

• Chargaff's rule

• Franklin's rule

A helix of Z-DNA is _____ than an A-DNA helix.

• Shorter

• Thicker

• Longer and thicker

• Thinner

Bacterial replication has multiple ORI

• True

• False

The phosphate group is attached to which carbon of deoxyribose in DNA?

• 1

• 3

• 5

• 4

The direction of DNA synthesis is from ____.

• 5ʹ - 3ʹ

• 3ʹ - 5ʹ

• Both occur simultaneously

• 4ʹ - 1ʹ

In E. coli, which DNA polymerase plays the main role in replication?

• DNA Polymerase I

• DNA Polymerase II

• DNA Polymerase III

• DNA Polymerase IV