Chapter 15

The Chromosomal Basis of Inheritance

Understand how genes on chromosomes are inherited together. Master linkage and sex-linked inheritance for competitive exams.

7 Hours

Olympiad 5/5

Advanced

NEETRequired

MCATRequired

AP BiologyRequired

IB BiologyRequired

USABO

5/5

BBO

5/5

INBO

5/5

IBO

5/5

Key Topics Covered

Chromosome theory of inheritance

Sex-linked inheritance

Linkage and recombination

Genetic mapping

Chromosomal abnormalities

Explain chromosome theory of inheritance

Solve sex-linked inheritance problems

Calculate recombination frequency

Understand chromosomal disorders

NEET tests color blindness, hemophilia inheritance patterns, and X-linked recessive trait pedigrees.

Olympiads require calculating map distances, three-point test crosses, and understanding recombination interference.

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