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NEET 2015
Exam
NEET
Year
2015
Subject
Zoology
Chapter
Strategies for Enhancement in Food Production

NEET 2015 · Zoology · Strategies for Enhancement in Food Production

Which of the following enhances or induces fusion of protoplasts?

Which of the following enhances or induces fusion of protoplasts?

Options

  1. ASodium chloride and potassium chloride
  2. BPolyethylene glycol and sodium nitrate
  3. CIAA and kinetin
  4. DIAA and Gibberellins

Correct answer

B. Polyethylene glycol and sodium nitrate

Step-by-step solution

The high molecular weight polymer (1000-6000) of PEG acts as a molecular bridges connecting the protoplasts. Calcium ions linked the negatively charged PEG and membrane surface. When PEG elute, the surface potential are disturbed, leading to intramembrane contact and subsequent fusion due to the strong affinity of PEG for water which may cause local dehydration of the membrane and increase fluidity, thus inducing fusion.
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