The viability of seeds is tested by

The Viability Of Seeds Is Tested By Biology Question

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.

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Question Type: Memory (969)
Difficulty Level: Easy (1013)
Topics: Reproduction In Plants (48)
Subject: Biology (4113)

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