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Why do vegetatively propagated plants tend to be more vulnerable to diseases than sexually reproduced plants?

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Question

Why do vegetatively propagated plants tend to be more vulnerable to diseases than sexually reproduced plants?

Short Answer
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Solution

Vegetative propagation produces genetically identical clones. If a disease affects one plant, all clones share the same genetic weakness and can be infected easily. Sexual reproduction creates genetic variation, so some offspring may possess resistance to diseases.

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Chapter 11: Reproduction: How Life Continues - Revise, Reflect, Refine [Page 225]

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NCERT Science Exploration [English] Class 9
Chapter 11 Reproduction: How Life Continues
Revise, Reflect, Refine | Q 7. | Page 225
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