DNA and RNA

What is the primary structural difference between DNA and RNA?

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

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

• Both DNA and RNA are single-stranded.

• Both DNA and RNA are double-stranded.

Approximately how many nucleotides does DNA contain compared to RNA?

• Both contain millions of nucleotides

• Both contain hundreds to thousands of nucleotides

• Hundreds to thousands in DNA, millions in RNA

• Millions in DNA, hundreds to thousands in RNA

What type of sugar does DNA contain?

• Deoxyribose

• Glucose

• Ribose

• Fructose

Which carbon in RNA's sugar molecule is attached to an oxygen?

• Carbon 3

• Carbon 1

• Carbon 2

• Carbon 4

Where is DNA primarily located within a cell?

• Cytosol

• Mitochondria

• Ribosomes

• Nucleus

Which organelle contains most of the RNA?

• Golgi apparatus

• Ribosomes

• Nucleus

• Mitochondria

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

• Adenine

• Uracil

• Cytosine

• Thymine

Which nitrogenous base is replaced by uracil in RNA?

• Thymine

• Guanine

• Cytosine

• Adenine

What makes up the rungs (steps) of a DNA ladder?

• sugars & phosphates

• nitrogen bases

• sugars

• genes & chromosomes

Tags

NGSS.HS-LS1-1

What pairs with Adenine in DNA?

• Guanine

• Cytosine

• Thymine

• Uracil