Biology Quiz on DNA and RNA

Which type of nucleic acid is single-stranded and involved in protein synthesis?

• DNA

• RNA

• ATP

• NADH

What are the building blocks of DNA and RNA?

• Amino acids

• Nucleotides

• Fatty acids

• Monosaccharides

Which sugar is found in DNA?

• Ribose

• Glucose

• Deoxyribose

• Fructose

Tags

NGSS.HS-LS1-1

Which nitrogenous base is found in RNA but not in DNA?

• Adenine

• Thymine

• Cytosine

• Uracil

What type of bond links nucleotides in a DNA or RNA strand?

• Hydrogen bond

• Ionic bond

• Phosphodiester bond

• Peptide bond

What is the role of RNA polymerase in transcription?

• To unwind DNA

• To synthesize mRNA

• To replicate DNA

• To degrade RNA

Which strand of DNA is read by RNA polymerase to synthesize RNA?

• Coding strand

• Template strand

• Noncoding strand

• Antisense strand

What is the first step of transcription called?

• Elongation

• Termination

• Initiation

• Translation

What marks the end of transcription?

• Initiation

• Elongation

• Termination

• Translation

What is the function of messenger RNA (mRNA)?

• To store genetic information

• To carry genetic information from DNA to the ribosome

• To replicate DNA

• To synthesize proteins directly