DNA Structure and Function Quiz

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

• A) Adenine

• B) Thymine

• C) Uracil

• D) Cytosine

DNA is shaped like a twisted ladder, called a ________.

• Double helix

• Single helix

• Triple helix

• Quadruple helix

Tags

NGSS.HS-LS1-1

How many pairs of chromosomes do humans have?

• 21

• 22

• 23

• 24

What are the building blocks of DNA called?

• Amino acids

• Nucleotides

• Proteins

• Lipids

What is the process by which the genetic information in DNA is copied into a molecule called RNA?

• Replication

• Transcription

• Translation

• Mutation

Which of the following scientists discovered DNA while studying white blood cells?

• James Watson

• Francis Crick

• Friedrich Miescher

• Rosalind Franklin

The two strands of DNA are ________, with adenine always pairing with thymine and guanine with cytosine.

• Identical

• Complementary

• Opposite

• Random

Which process ensures that each new cell receives a complete set of genetic instructions?

• Transcription

• Translation

• Replication

• Mutation

Tags

NGSS.HS-LS1-4

What is the basic structure of a DNA molecule?

• A. A double helix

• B. A single helix

• C. A straight line

• D. A circle

Where is DNA found in a human cell?

• In the cytoplasm

• In the cell membrane

• In the nucleus

• In the mitochondria