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Basic Principles of Inheritance

CBSE · Class 11 · Biotechnology

Complete topic list for Basic Principles of Inheritance in CBSE Class 11 Biotechnology. Key concepts, sub-topics, and what to focus on for board exams.

59 questions76 flashcards5 concepts

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4 Topics · CBSE Class 11 Biotechnology

Topics in Basic Principles of Inheritance

1

1. Introduction to Heredity and Mendel's Work

  • Heredity is the transmission of characters from one generation to the next.
  • Genes are the inherited units present on chromosomes.
  • Variations are the differences between offspring and their parents.
2

2. Monohybrid Cross, Ratios, and Mendel's Laws

  • A monohybrid cross involves only one pair of contrasting traits.
  • In a tall x dwarf pea cross, all F1 plants are tall.
  • F1 tall plants are heterozygous with genotype Tt.
3

3. Incomplete Dominance, Codominance, and Dihybrid Cross

  • Incomplete dominance occurs when the F1 hybrid shows an intermediate phenotype.
  • Mirabilis jalapa shows incomplete dominance: RR red x rr white gives Rr pink.
  • In the F2 of Mirabilis jalapa, the ratio is 1 red : 2 pink : 1 white.
4

4. Linkage, Crossing Over, and Recombination

  • Linkage is the inheritance of genes together and their retention of parental combination in offspring.
  • Genes on the same chromosome form a linkage group.
  • Bateson and Punnett provided evidence for linkage in sweet pea.

Key Concepts

Central concept: Inheritance of traits through genes, chromosomes, and patterns of gene interaction

HeredityVariationGeneticsMendel's workMonohybrid crossTest crossMendel's lawsIncomplete dominance

Frequently Asked Questions

What are the important topics in Basic Principles of Inheritance for CBSE Class 11 Biotechnology?
Key topics in Basic Principles of Inheritance include Chapter Overview: Basic Principles of Inheritance, Basic Principles of Inheritance — Chapter Overview, Basic Principles of Inheritance — Chapter Overview. These are the concepts CBSE Class 11 examiners draw on most — study them first, then practise related questions.
How to score full marks in Basic Principles of Inheritance — CBSE Class 11 Biotechnology?
Understand the core concepts first, then work through the 59 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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