Class 10 Science Chapter 8: Heredity and Evolution — 5 Marker Important Questions
Practice Heredity and Evolution 5 Marker important questions and mock-test sets for CBSE revision.
Topic-wise important and practice questions
Review question distribution across chapter topics for 5 Mark questions.
| Topic | 5 Mark |
|---|---|
| Earlobe Variation Activity | 2 |
| Dihybrid Cross and Independent Inheritance | 0 |
| Mendel's Pea Plant Experiments | 4 |
| Monohybrid Cross: F1 Generation | 3 |
| Sexual Reproduction and Greater Variation | 3 |
| Accumulation of Variation During Reproduction | 4 |
| Heredity and Inherited Traits | 3 |
| New Trait Combinations in F2 | 3 |
| Dominant and Recessive Traits | 2 |
| Probability of XX and XY Offspring | 3 |
| Restoration of Chromosome Number at Fertilisation | 1 |
| Single Gene Set in Germ Cells | 3 |
| Gene Expression and Plant Height | 3 |
| Human Sex Chromosomes | 1 |
| Interpreting Dominance from Family Data | 1 |
| Maternal and Paternal Contribution to Sex Determination | 1 |
| Monohybrid Cross: F2 Ratios | 1 |
| Population Frequency and Relative Age of Asexual Traits | 2 |
| Sex Determination Strategies in Different Species | 2 |
| Variation in Asexual Reproduction | 2 |
| Chromosomes as Separate Gene-Carrying Units | 1 |
| Genes as Information for Proteins | 1 |
| Designing Inheritance Investigations | 1 |
| Variation and Survival | 2 |
| Equal Genetic Contribution of Parents | 1 |
| Genotype and Phenotype Relationships | 0 |
5 Marker Preparation & Exam Strategy
5 Mark long answer questions require comprehensive, well-structured answers incorporating definitions, detailed explanations, diagrams, and applied problem-solving.
- Begin with a concise definition or introduction before diving into subsections.
- Break answers into sub-headings: Definition, Working Principle, Step-by-Step Procedure, and Conclusion.
- Draw clear, fully labeled diagrams and highlight key equations in boxed sections.
- Allocate time prudently: spend roughly 10–12 minutes constructing a well-rounded 5-mark response.
Sample Questions
Q1. Provide a comprehensive explanation of the major topic in Heredity and Evolution, detailing its mechanism and significance.
Model Answer: Structure the response into definition, detailed working mechanism, practical significance, and relevant schematic diagram.
Q2. Discuss the experimental setup or practical investigation associated with Heredity and Evolution, including observations and conclusions.
Model Answer: Detail the apparatus required, procedure followed, observations recorded, and logical conclusions drawn.
Q3. Evaluate how concepts from Heredity and Evolution connect with real-world technological or natural systems.
Model Answer: Present a multi-point analysis highlighting scientific principles, societal applications, and analytical insights.