DNA and RNA

What is the primary function of DNA in cells?

• To carry oxygen

• To produce ribosomes

• To store genetic information

• To digest proteins

What is the structure of DNA commonly referred to as?

• Spiral ramp

• Double helix

• Twisted cube

• Circular loop

Which of the following statements about RNA is TRUE?

• RNA is found only inside the nucleus.

• RNA is a type of carbohydrate.

• RNA helps translate DNA’s message to make proteins.

• RNA contains thymine as one of its bases.

Which sugar is found in DNA?

• Glucose

• Sucrose

• Deoxyribose

• Ribose

Which sugar is found in RNA?

• Deoxyribose

• Maltose

• Lactose

• Ribose

Which base is present in RNA but NOT in DNA?

• Thymine

• Adenine

• Guanine

• Uracil

What are the three parts of a nucleotide?

• Sugar, lipid, protein

• Sugar, phosphate, base

• Base, enzyme, nucleus

• Ribose, glucose, protein

Which of the following is NOT a difference between DNA and RNA?

• Type of sugar

• Number of strands

• Type of nitrogen base

• Type of phosphate group

If one strand of DNA has the sequence A-T-C-G-T-A, what is the complementary strand?

• T-A-G-C-T-A

• T-A-G-G-T-A

• A-U-G-C-A-T

• U-A-G-C-T-A

Which of the following types of RNA carries the genetic message from DNA to ribosomes?

• rRNA

• tRNA

• mRNA

• dRNA