DNA Structure

Which covalently bonded atoms will form STRONGER Hydrogen Bonds / Be MOST Polar?

• O – H
• C – H
• N – H
• S – H

Which bonding Pair will be 'least polar'?

• O = O
• N – H
• O – H
• C – H

Electron Affinity (Electronegativity) Decreases from...

• Lower Left to Upper Right
• Upper Right to Lower Left
• Upper Left to Lower Right
• Lower Right to Upper Left

Deoxyribose Nucleic Acid is called this because...

• It is found in the nucleus
• It has a sugar missing one oxygen
• It is a bit acidic
• All of these are reasons for its name.

Which part of the nucleotide makes DNA a bit 'acidic'?

• The Nitrogenous Base
• The Phosphate Group
• The Sugar (Deoxyribose)
• The Hydrogen Bonds it forms

What is attached to the 2' Carbon of this Nucleotide?

• Two Hydrogen Atoms
• A Hydrogen Atom and an OH (Hydroxide)
• Nitrogen Base
• CH₂

What is attached to the 1' Carbon of this Nucleotide?

• Cytosine and a Hydrogen
• Thymine Only
• Thymine and a Hydrogen
• Cytosine Only

Which nucleotide is being shown here?

• Thymine DNA Nucleotide
• Adenine DNA Nucleotide
• Guanine DNA Nucleotide
• Thymine RNA Nucleotide

Which nucleotide is being shown here?

• Guanine DNA Nucleotide
• Guanine RNA Nucleotide
• Cytosine DNA Nucleotide
• Cytosine RNA Nucleotide

This is a ____ DNA nucleotide.

• Cytosine
• Thymine
• Guanine
• Adenine