Multiple choice

Directions: Cell membrane protein of a penguin was stained by fluorescence tagged antibody.

If FRAP was done, what would be the result?

  1. No membrane proteins are visible.

  2. Fluorescence will be increased rapidly.

  3. Fluorescence will increase after a long time interval.

  4. Fluorescence will decrease while time will increase.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Penguin is an arctic animal. So, it possesses more unsaturated fatty acid and cholesterol. Due to heavy low temperature, the membrane fluidity is increased for preventing the freezing of plasma membrane. So after examining the protein under the microscope, photobleaching of cell membrane has started, but due to high membrane fluidity, the photobleaching will be recovered gently.

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