Nucleotides

Which of the following DNA nucleotides are paired with the correct corresponding DNA nucleotide? (mark all that apply)

• Adenine with Thymine

• Guanine with Cytosine

• Thymine with Cytosine

• Adenine with Uracil.

• Uracil with Thymine

Based on the given data table of two bacteria, which of the following statements are true? (mark all that apply)

• S. pneumoniae has the most thymine in its nucleus.

• Both bacteria have less guanine than adenine.

• S. pneumoniae's amount of cytosine is more similar to guanine than thymine.

• E. coli's greatest amount of nitrogen bases is adenine.

You are given the DNA strand 5'ATGCTCAGCTGA3'. What is the corresponding DNA strand?

• 5'UACGAGUCGACU3'

• 5'TACGAGTCGACT3'

• 3'UACGAGUCGACU5'

• 3'TACGAGTCGACT5'

What is the role of DNA polymerase? (mark all that apply) ​

• Foster hydrogen bonds

• Foster phosphoester bonds

• Add free nucelotides

• Remove current phosphates

• Stabilize the DNA strand for replication

Which is the role of DNA polymerase?

• Unwinds the original DNA strand

• Lays down RNA primer for new nucleotide bases.

• Builds new strands by bringing in new nucleotide bases.

• Remove Okazaki fragments for new nucleotides.

DNA replication puts down nucleotides ______' to _____' and is said to be ______________________

• 5, 3, antiparallel

• 3, 5, antiparallel

• 5, 3, parallel

• 3, 5, parallel

The picture below shows an enzyme unwinding and unzipping DNA.

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​What is the name of this enzyme?

• DNA Helicase

• DNA Ligase

• DNA polyermase

• RNA Polymerase

Nucleotides are made of a molecule of deoxyribose, connected to a phosphate & a nitrogen base. They make up one side of the DNA double helix.

• true

• false

Base that pairs with thymine.

• guanine

• cytosine

• adenine

• phosphate

The base that pairs with guanine.

• cytosine

• adenine

• phosphate

• thymine