‘X’ and ‘Y’ are plant hormones which inhibits growth and promotes ageing in plants respectively. Identify ‘X’ and ‘Y’.

X - Cytokinin Y - Auxin

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X - Abscisic acid Y - Ethylene

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X - Auxin Y - Cytokinin

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X - Ethylene Y - Gibberellin

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Solution

The correct option is B X - Abscisic acid Y - Ethylene
Abscisic acid is a growth-inhibiting hormone while ethylene, auxin and cytokinin are growth-promoting hormones. So, X is abscisic acid and Y is ethylene.

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Similar questions

Name the plant hormone:
A. which inhibits growth and causes wilting of leaves.
B. which promotes cell division.

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