Structure and Function of DNA

What is the function of DNA?

• to store and transmit heredity information

• to provide chemical energy to the cell

• to transport oxygen to the lungs

The monomer of DNA is called

• an amino acid

• a nucleotide

• a fatty acid

Adenine (A), Thymine (T), Cytosine (C) and Guanine (G) are

• phosphates

• sugars

• nitrogenous bases

Which organelle is DNA found in?

• cell membrane

• vacuole

• ribosome

• nucleus

The three parts of a DNA nucleotide are:

• Sugar, protein, nitrogenous base

• Deoxyribose sugar, phosphate, a nitrogenous base

• Phosphate, protein, nitrogenous base

• Phosphate, sulfur, nitrogenous base

How many nucleotides make up this section of DNA?

• 4

• 6

• 8

• 10

In DNA, Adenine bonds with ______________.

• Guanine
• Thymine
• Cytosine
• Adenine

What does DNA stand for?

• Deoxyribonucleic acid
• Denitrogenous acid
• Deribonucleic acid
• Diribonucleic acid

Which organelle is DNA usually found in?

• cell membrane
• vacuole
• ribosome
• nucleus

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil