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The viability of seeds is tested by
Options
(a) Safranine
(b) 2, 6 dichlorophenol indophenols
(c) 2, 3, 5 triphenyl tetrazolium chloride
(d) DMSO
Correct Answer:
2, 3, 5 triphenyl tetrazolium chloride
Explanation:
Dehydrogenase enzyms present in living tissue reduce the tetrazolium chloride to formazan, a reddish, water insoluble compound. This reaction occurs in or near living cells which are releasing hydrogen in respiration processes. Viable tissues produce a normal red-colour, weak living tissue produce an abnormal colour. Dead tissues do not stain, remaining usually white.
Related Questions: - Mulching is
- R.Q. (respiratory quotient) is less than 1 in
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- In cycas the vascular bundles are arranged in the shape of inverted omega in
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Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Reproduction In Plants
(48)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Mulching is
- R.Q. (respiratory quotient) is less than 1 in
- Which one of the following measures is a way to recover salt affected lands?
- In cycas the vascular bundles are arranged in the shape of inverted omega in
- The unequivocal proof with dominant material came from the studies on a
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Reproduction In Plants (48)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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