Watson and Crick Developed a Model of DNA in Which

question 3

Multiple Choice

Watson and Crick developed a model of DNA in which the two strands twist into the shape of a ________.

• A)circle
• B)helix
• C)double helix
• D)double pleated sheet

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Definitions:

Mitochondria

Membrane-bound organelles found in the cytoplasm of eukaryotic cells, vital for energy production through cellular respiration.

Cell Walls

Rigid or semi-rigid structures surrounding the cell membrane of some cells, providing structural support and protection.

Capsules

Structures that enclose certain organisms or parts of organisms, often for protection, such as bacterial capsules which help evade immune responses.

Bacterial Membrane

The lipid bilayer surrounding a bacterium, controlling the movement of substances in and out of the cell.