Understanding DNA and RNA Processes

The drawing shows the structure of what molecule?

• A DNA molecule

• A lipid molecule

• A carbohydrate molecule

• A protein molecule

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NGSS.HS-LS1-1

What is the primary function of DNA in cells?

• To provide energy for cellular processes

• To store genetic information

• To transport molecules across the cell membrane

• To catalyze biochemical reactions

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following nitrogen bases is found in RNA but not in DNA?

• Adenine

• Thymine

• Uracil

• Cytosine

What is the shape of the DNA molecule?

• Single helix

• Double helix

• Triple helix

• Linear strand

Which type of RNA carries the genetic information from DNA to the ribosome?

• rRNA (ribosomal RNA)

• tRNA (transfer RNA)

• mRNA (messenger RNA)

• siRNA (small interfering RNA)

What are the building blocks of DNA and RNA?

• Amino acids

• Nucleotides

• Fatty acids

• Monosaccharides

Which of the following is NOT a nitrogen base found in DNA?

• Adenine

• Guanine

• Cytosine

• Uracil

What is the main structural difference between DNA and RNA?

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

• DNA contains ribose sugar, while RNA contains deoxyribose sugar

• DNA contains deoxyribose sugar, while RNA contains ribose sugar

• DNA is made of amino acids, while RNA is made of nucleotides

Which type of RNA is a component of ribosomes?

• mRNA (messenger RNA)

• tRNA (transfer RNA)

• rRNA (ribosomal RNA)

• miRNA (micro RNA)

Which nitrogen base pairs with adenine in DNA?

• Guanine

• Cytosine

• Thymine

• Uracil