GB1-LT2

Which of the following atoms is NOT found in nucleic acids?

• Boron

• Carbon

• Oxygen

• Phosphorus

Nucleic acids are polymers of ___.

• nitrogenous bases

• nuclearides

• nucleobases

• nucleotides

Which of the following CANNOT be found in a nucleotide structure?

• hexose sugar

• nitrogenous base

• pentose sugar

• phosphate group

The sugar found in RNA is called ___.

Which of the following is a purine?

• Adenine

• Cytosine

• Thymine

• Uracil

DNA utilizes the bases guanine, cytosine, thymine, and adenine. In RNA, ___ is replaced by ___.

• adenine; uracil

• cytosine; thymine

• cytosine; uracil

• thymine; uracil

The pairing of purines and pyrimidines to create a double-stranded DNA molecule is called ___.

• antiparallel formation

• complementary base pairing

• condensation

• phosphodiester linkage

The double helix formation of DNA is caused by ___.

• covalent bonds

• hydrogen bonds

• ionic bonds

• phosphodiester bonds

Which type of RNA carries the code for protein synthesis? Write its complete name.

Which of the following is correct about RNA?

• It contains a ribose sugar.

• It contains uracil in place of thymine.

• It contains phosphate groups.

• All of the above.