Historical Experiments | MCQs
ڈی این اے کو جینیاتی مواد کے طور پر ثابت کرنے کے لئے بلینڈر تجربہ ______ کے ذریعہ کیا گیا تھا؟
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A. Hershey & Chase
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B. Watson & Crick
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C. Messelson & Stahl
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D. None of these
Explanation
- Hershey & Chase (1952) used the Blender Experiment with bacteriophages to confirm that DNA, not protein, is the genetic material.
- They labeled DNA with phosphorus-32 and protein with sulfur-35, proving only DNA enters bacterial cells to direct viral replication.
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A. Millikan
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B. None of these
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C. Ampere
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D. Maxwell
Explanation
The charge of an electron was experimentally determined by Robert A. Millikan through his famous Oil Drop Experiment in 1909.
He measured the smallest unit of electric charge, which is the elementary charge (e):
e=1.602×10^−19 Coulombs
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