DNA, RNA, and Replication Quiz

• The portion labelled A is a deoxyribose sugar

• The portion labelled A is a nitrogenous base

• The portion labelled A is a phosphate

• The portion labelled A is a nucleotide

• The portion labelled B is a deoxyribose sugar

• The portion labelled B is a nitrogenous base

• The portion labelled B is a phosphate

• The portion labelled B is a nucleotide

• The portion labelled C is a deoxyribose sugar

• The portion labelled C is a nitrogenous base

• The portion labelled C is a phosphate

• The portion labelled C is a nucleotide

• The portion labelled D is a deoxyribose sugar

• The portion labelled D is a nitrogenous base

• The portion labelled D is a phosphate

• The portion labelled D is a nucleotide

• If the molecule labelled C is cytosine, then it must be bonding to a molecule of cytosine

• If the molecule labelled C is cytosine, then it must be bonding to a molecule of guanine

• If the molecule labelled C is cytosine, then it must be bonding to a molecule of thymine

• If the molecule labelled C is cytosine, then it must be bonding to a molecule of adenine

• The molecules labelled A and B are joined by hydrogen bonds

• The molecules labelled A and B are joined by ionic bonds

• The molecules labelled A and B are joined by peptide bonds

• The molecules labelled A and B are joined by covalent bonds

The shape of the DNA molecule is called a:

• Spiral

• Twisted ladder

• Double helix

• Complementary base pair

Choose the option with nitrogenous bases that have double-ring structures:

• Adenine and guanine

• Cytosine and thymine

• Adenine and thymine

• Cytosine and guanine

You have a DNA molecule. You observe that DNA molecule create an identical DNA molecule. You have observed the process of:

• Transcription

• Translation

• DNA replication

• Protein synthesis

The enzyme responsible for inserting the correct RNA nucleotides during the first phase of protein synthesis is:

• DNA polymerase

• RNA polymerase

• DNA ligase

• Helicase