Question:
Which of the following chemicals is used for doubling of chromosomes?
Which of the following chemicals is used for doubling of chromosomes?
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Chromosome doubling:
- Colchicine is the most common agent.
- Used to produce polyploids.
- Arrests metaphase by inhibiting spindle formation.
- Colchicine is the most common agent.
- Used to produce polyploids.
- Arrests metaphase by inhibiting spindle formation.
Updated On: Sep 1, 2026
- MH
- CCC
- NAA
- Colchicine
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Question:
This question tests knowledge of chromosome doubling agents.
Step 2: Detailed Explanation:
Colchicine is used for doubling of chromosomes.
It arrests cell division at metaphase by preventing spindle formation.
MH (A): Maleic hydrazide (growth inhibitor).
CCC (B): Chlorocholine chloride (growth retardant).
NAA (C): Naphthaleneacetic acid (synthetic auxin).
Thus, colchicine is the correct answer.
Step 3: Final Answer:
Thus, colchicine is used for doubling of chromosomes, which corresponds to option (D).
[0.5cm]
This question tests knowledge of chromosome doubling agents.
Step 2: Detailed Explanation:
Colchicine is used for doubling of chromosomes.
It arrests cell division at metaphase by preventing spindle formation.
MH (A): Maleic hydrazide (growth inhibitor).
CCC (B): Chlorocholine chloride (growth retardant).
NAA (C): Naphthaleneacetic acid (synthetic auxin).
Thus, colchicine is the correct answer.
Step 3: Final Answer:
Thus, colchicine is used for doubling of chromosomes, which corresponds to option (D).
[0.5cm]
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