What is the chemical composition of DNA?

• A. Amino acids

• B. Nucleotides

• C. Fatty acids

• D. Carbohydrates

What is the structure of DNA?

• Single helix

• Double helix

• Triple helix

• Quadruple helix

Where is DNA located in eukaryotic cells?

• Cytoplasm

• Nucleus

• Mitochondria

• Ribosomes

What is the process of generating an RNA molecule called?

• Translation

• Transcription

• Replication

• Transformation

What type of reaction is transcription?

• Hydration

• Dehydration

• Hydrolysis

• Condensation

What is the difference between DNA and RNA?

• DNA is single-stranded, RNA is double-stranded

• DNA is double-stranded, RNA is single-stranded

• DNA contains uracil, RNA contains thymine

• DNA is found in the cytoplasm, RNA is found in the nucleus

Which of the following is an RNA nucleotide, not found in DNA?

• A. Adenine

• B. Uracil

• C. Cytosine

• D. Thymine

What is the direction in which RNA polymerase reads the template DNA?

• 3' to 5'

• 5' to 3'

• 2' to 4'

• 4' to 2'

Why aren't nucleosides incorporated into DNA?

• There are no phosphates to make the phosphodiester bonds

• The bases are not fully assembled

• The sugar is not in the right form

• The peptide bonds don't form

Why is the interaction between adenine and cytosine unstable in a DNA mutation?

• The chemical groups that form hydrogen bonds are in the wrong positions

• The phosphate groups of the two bases repel each other

• An ionic bond cannot be formed between the two

• The charges on the bases repel one another