If Plant Cells Are Grown on Media Containing Radioactively Labeled

question 66

Multiple Choice

If plant cells are grown on media containing radioactively labeled thymine for one generation, radioactively labeled macromolecules will be detected in which of the following organelles?

• A) only in the nucleus
• B) only in the nucleus and mitochondria
• C) only in the nucleus and chloroplasts
• D) in the nucleus, mitochondria, and chloroplasts

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Definitions:

Circumferential

Pertaining to or measuring the perimeter of a circle or other rounded object.

Concentric

Defined by objects sharing a common center, often used in physics and geometry.

Interstitial

Space within tissue. Interstitial growth is growth from within.

Appositional

A mode of growth by the addition of new layers on the surface of existing tissues or structures.