DNA Structure & Function NOTES

Multiple Choice

Where is the DNA located in prokaryotic cells?

• In the nucleus

• In the nucleoid region/cytoplasm

• In the mitochondria

• In the ribosomes

Multiple Choice

What is the shape of the DNA molecule?

• Single strand

• Double helix

• Triple helix

• Circular

Multiple Select

Which of the following are parts of a nucleotide?

• Phosphate group

• Deoxyribose sugar

• Nitrogen base

• Amino acid

Multiple Choice

Which nitrogen bases are classified as purines?

• Adenine and Guanine

• Cytosine and Thymine

• Adenine and Thymine

• Guanine and Cytosine

Multiple Select

Which components make up the backbone of DNA?

• phosphate group

• adenine

• deoxyribose sugar

• nitrogen bases

Multiple Choice

Which nitrogenous base pairs with Adenine in the DNA double helix?

• Thymine

• Cytosine

• Guanine

• Uracil

Multiple Select

Which of the following statements about DNA are correct?

• DNA controls cell functions by directing protein production.

• Proteins make up most of your body.

• DNA is made up of only three nitrogenous bases.

• The sequence of DNA bases determines traits.

Open Ended

Explain how the sequence of nitrogen bases in DNA determines the uniqueness of an individual.

Multiple Choice

What is the complementary DNA strand for the sequence CACGACTT?

• GTGCTGAA

• GAGCTGAA

• GTGCGTAA

• CTGCTGAA

Open Ended

Describe the structure of a DNA molecule, including the components of a nucleotide and how the strands are held together.