Quick 10Q: Nucleic Acids

Which of the following element(s) are found in nucleic acids?

• carbon/hydrogen

• oxygen

• phosphorus

• nitrogen

• sulfur

Which of the following is the monomer of a nucleic acid?

• Amino Acid

• Monosaccharide

• Nucleotide

• Nitrogenous Base

Which of the following is NOT one of the three groups comprising the nucleotide?

• R group

• phosphate

• nitrogenous base

• pentose sugar

Which of the following describes the difference between a purine and a pyrimidine?

• Purines are single ring structures while pyrimidines are double ring structures.

• Pyrimidines are single ring structures while purines are double ring structures.

• Purines are composed of single bonds while pyrimidines are composed of double bonds.

• Pyrimidines are composed of single bonds while purines are composed of double bonds.

Which of the following are purines?

• adenine

• cytosine

• guanine

• thymine

• uracil

Which of the following are pyrimidines?

• adenine

• cytosine

• guanine

• thymine

• uracil

Which of the following describes the base pairing and bonding involved with nitrogenous bases?

• Adenine binds with Cytosine with 2 hydrogen bonds

• Adenine binds with Thymine with 2 hydrogen bonds

• Adenine binds with Guanine with 3 hydrogen bonds

• Adenine binds with Uracil with 3 hydrogen bonds

Which of the following describes a DNA strand that would be most stable at high temperatures?

• 25% A/T and 75% C/G

• 50% A/T and 50% C/G

• 75% A/T and 25% C/G

• 100% A/T and 0% C/G

If a researcher investigating a RNA strand discovers it contains 36% uracil, which of the following identifies the amount of cytosine?

• 14%

• 28%

• 64%

• cannot be determined

Which of the following describes the directionality of nucleic acids?

• 5' end has a hydroxyl and 3' end has a phosphate

• 5' end has a phosphate and 3' end has a hydroxyl

• 5' end has an amino group and 3' end has a carboxyl group

• 5' end has a carboxyl group and 3' end has a amino group