09. Heredity and Evolution

Description:

Class 10 Science Chapter 9 – Heredity and Evolution Important Questions PDF

This downloadable PDF features handpicked important questions from Chapter 9 – Heredity and Evolution of Class 10 Science. Aligned with the CBSE 2024–25 syllabus, it includes short and long answers, HOTS (Higher Order Thinking Skills), diagrams, and topic-specific questions to simplify genetics, Mendelian inheritance, and evolution concepts.

All questions follow the NCERT format and past CBSE exam patterns, making it the perfect revision companion for scoring high in your board exams.

Why Choose This Book?

✅ 100% CBSE-aligned important questions
✅ Structured answers following board-exam writing patterns
✅ Includes reasoning-based, diagram-based, and genetics-based questions
✅ HOTS + application-based problems for deeper understanding
✅ Quick revision-friendly – saves hours of textbook searching
✅ Based on actual CBSE trends & question paper styles

What You Will Learn?

✅ Variations arising during the process of reproduction can be inherited.

✅ These variations may lead to increased survival of the individuals.

✅ Sexually reproducing individuals have two copies of genes for the same trait. If the copies are not identical, the trait that gets expressed is called the dominant trait and the other is called the recessive trait.

✅ Traits in one individual may be inherited separately, giving rise to new combinations of traits in the offspring of sexual reproduction.

✅ Sex is determined by different factors in various species. In human beings, the sex of the child depends on whether the paternal chromosome is X (for girls) or Y (for boys).

What’s Inside the Book?

Total Pages: 12–14
Format: Instant Download PDF (Printable)
Content Includes:
✅ 34 most expected exam questions
✅ Short-answer and long-answer patterns
✅ Mendel’s crosses, dominant-recessive traits, and genetic ratios
✅ Diagrams and traits-based problem solving
✅ Past exam-style conceptual questions
✅ Variation, heredity, and evolution explanation sets

Chapter Coverage

This PDF fully covers key Class 10 Chapter 9 concepts like:
1. Basics of heredity: genes, chromosomes, traits
2. Mendelian inheritance & monohybrid/dihybrid crosses
3. Genotype vs phenotype
4. Acquired vs inherited traits
5. Genetic variations and natural/artificial selection
6. Evolution through speciation and selection
7. Human sex determination (XX/XY)
8. Diagrams, definitions, and genetic problem solving
9. HOTS, definitions, and CBSE-style problems

Who Can Benefit from This Book?

✅ Class 10 CBSE students preparing for science board exams
✅ Students who struggle with genetics or evolution topics
✅ Parents who want a reliable revision guide for their children
✅ Teachers creating question banks or assignments
✅ Tutors guiding students in structured science preparation

How to Use This Book Effectively?

✅ Begin by solving each question yourself
✅Match with the model solution for structure and content
✅ Practice diagrams and trait tables included in the PDF
✅ Use colour pens to mark definitions, examples, and genetic rules
✅ Revise 3–5 questions a day leading to the exam
✅ Use it as a one-stop revision file before the final Science paper

Frequently Asked Questions (FAQs)