Molecular Basis of Inheritance NEET Notes: The molecular basis of inheritance refers to the way in which genetic information is passed from one generation to the next. It explains how traits are inherited through DNA, the molecule that carries genetic instructions. Understanding this concept is crucial for the NEET 2026 exam , as it forms a fundamental part of biology and genetics.
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The molecular basis of inheritance focuses on the structure of DNA, its role in storing genetic information, and how it is passed on to offspring. It covers topics like DNA replication, transcription, translation, and mutations. The study of this chapter will help students understand how genetic traits are inherited and the molecular mechanisms behind inheritance patterns.
Students preparing for NEET 2026 can access detailed notes on the molecular basis of inheritance below. The molecular basis of inheritance is a very lengthy chapter, so to explain it in detail, two PDFs are being provided to ensure that no point is missed by the students. You can download both Part 1 and Part 2: Molecular Basis of Inheritance NEET Notes PDF from the link below.
Download the PDF of Molecular Basis of Inheritance NEET Notes Part 1
Download the PDF of Molecular Basis of Inheritance NEET Notes Part 2
The molecular basis of inheritance refers to the processes by which genetic information is passed from parents to offspring. This is done through DNA, which carries genes that control traits. Inheritance follows specific patterns, and the mechanisms of inheritance are primarily explained by the structure and function of DNA.
The molecular basis of inheritance has a significant weightage in the NEET exam. Based on the last five years of NEET exams (2021–2025), this chapter has contributed as follows:
Weightage Following Previous Year’s Trends (2021-2025) | ||||||
Chapter | Easy | Medium | Hard | Total | Average Q/yr | Weightage |
Molecular Basis of Inheritance | 16 | 15 | 3 | 34 | 6.80 | 13.23% |
From this data, it can be seen that the molecular basis of inheritance is regularly asked in NEET, with an average of 6.8 questions per year, contributing to approximately 13.23% of the total biology questions.
NEET Chapter Wise Weightage 2026 for Biology | |
Topics | Weightage (%) |
Molecular Basis of Inheritance | 14% |
The molecular basis of inheritance is vital for students preparing for NEET as it explains the foundational concepts of genetics. Understanding this chapter helps in answering questions on DNA, genetic disorders, and inheritance patterns. Additionally, it serves as a stepping stone to more complex topics like biotechnology and genetic engineering.
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