DNA Structure and Function Study Guide

DNA stands for:

• Deoxyribonucleic Acid

• Donotdisturb Nucleic Acid

• Robonucleic Acid

• Ribonucleic Acid

What are the three parts of a nucleotide?

• A nucleotide consists of a sugar, a phosphate group, and a nitrogenous base.

• A nucleotide consists of a sugar, a lipid, and a nitrogenous base.

• A nucleotide consists of a sugar, a phosphate group, and a fatty acid.

• A nucleotide consists of a sugar, a lipid, and a fatty acid.

The name of the sugar found in DNA is:

• Glucose

• Fructose

• Ribose

• Deoxyribose

The nitrogenous bases are held together by weak __________ bonds.

• weak hydrogen bonds

• ionic bonds

• covalent bonds

• van der Waals forces

Which number in the picture represents a hydrogen bond between two nitrogenous bases?

• 1

• 2

• 3

• 4

The term “double helix” is important in the study of DNA because:

• it describes the shape of the DNA molecule.

• it refers to the process of DNA replication.

• it is a type of genetic mutation.

• it is a method of DNA sequencing.

Is the DNA in one person’s skin cells the same as the DNA in that same person’s white blood cells?

• Yes, the DNA is the same in all of an individual's cells.

• No, the DNA is different in every cell.

• Only some parts of the DNA are the same.

• Yes, the DNA in every person is exactly the same.

If there is 22% THYMINE in a strand of DNA, how much CYTOCINE is present?

• 22%

• 28%

• 56%

• 78%

If there is 14% ADENINE in a double strand of DNA, how much THYMINE is present?

• 36%

• 14%

• 72%

• 28%

Where in the cell does DNA replication occur?

• Nucleus

• Cytoplasm

• Ribosome

• Mitochondria