Part of ICSE Class 9 Biology on Lipi
About this chapter
Variation & Mutations · ICSE Class 9 Biology. Sources of Variation: Biological variation arises from genetic differences in DNA alleles, which are heritable, or from environmental factors like diet and sunlight, which are not passed to offspring.
Variation & Mutations
Covers Summary, Central idea, Diagrams, Key facts, and more.
What this chapter covers
- Summary
- Central idea
- Diagrams
- Key facts
- Word meanings
- Themes
- Common mistakes
- Remember this
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The full lesson opens all 13 sections: summaries, word meanings and model answers, in the language of the book.
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