How does colchicine induce chromosome doubling?
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Correct answer: It inhibits spindle fiber formation so chromosomes cannot separate
Colchicine interferes with microtubule formation, so spindle fibers cannot function normally. As a result, replicated chromosomes may remain in the same cell, producing a doubled chromosome number.
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More Polyploidy questions
- Which condition is different from polyploidy because it involves gain or loss of individual chromosomes rather than whole sets?
- Why are many triploid plants seedless or highly sterile?
- Which crop is commonly produced as a seedless triploid fruit?
- Which important cereal crop is a natural allopolyploid?
- What does the term hexaploid mean?
- Which effect is commonly observed in some polyploid plants?