The Structure and Function of DNA

Who discovered the structure of DNA?

• Charles Darwin

• Gregor Mendel

• James Watson and Francis Crick

• Louis Pasteur

What is the structure of DNA?

• Quadruple helix

• Single helix

• Double helix

• Triple helix

Which nitrogenous base pairs with adenine in DNA?

• Cytosine

• Uracil

• Thymine

• Guanine

What is the main function of DNA?

• To transport oxygen

• To code genetic information

• To provide structural support

• To store energy

Tags

NGSS.HS-LS1-1

What is a gene?

• A type of enzyme

• A segment of DNA that codes for a protein

• A type of cell

• A molecule that stores energy

Tags

NGSS.HS-LS1-1

What is the backbone of a DNA strand made of?

• Phosphate and deoxyribose sugar

• Lipids

• Proteins

• Amino acids

What is the process of copying DNA called?

• Transcription

• Translation

• Mutation

• Replication

Where is DNA found in eukaryotic cells?

• Cytoplasm

• Nucleus

• Cell membrane

• Ribosome

What are plasmids?

• Main chromosomes in eukaryotes

• Autonomous, self-replicating genetic material

• Proteins that bind DNA

• Lipids in cell membranes

What is the role of hydrogen bonds in DNA?

• To provide energy

• To hold the two strands together

• To catalyze reactions

• To transport molecules