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NEET UG 2026 Biology: Old NCERT vs New NCERT syllabus, Key DifferenceNEET UG 2026 Biology: The NEET UG 2026 Biology syllabus shows differences between Old and New NCERT textbooks. Updates include corrections in terminology, such as Antonie Van Leeuwenhoek's name and electrocardiogram usage. Genetic concepts, like recombinant plasmid selection, now use ampicillin instead of tetracycline. The universe's age has been revised to 13.8 billion years. Other changes include updates in cellular structures, protein descriptions, and definitions of IRV and ERV. These differences emphasize the need for the latest NCERT textbooks for accurate NEET UG 2026 preparation.
NEET UG 2026 Biology: Old NCERT vs New NCERT Syllabus Key Differences
Find the main differences between the old NCERT and new NCERT syllabus for NEET UG 2026 Biology in the table below.
Point of Differentiation | Old NCERT | New NCERT |
|---|---|---|
Spelling correction | Anton Von Leeuwenhoek first saw and described a live cell | Antonie Von Leeuwenhoek first saw and described a live cell |
Terminology change | Electrocardiograph | Electrocardiogram |
Change in antibiotic used | The recombinant plasmids will lose tracycline resistance due to insertion of foreign DNA but can still be selected out from non-recombinant ones by plating the transformants on tetracycline containing medium. | The recombinant plasmids will lose tetracycline resistance due to insertion of foreign DNA but can still be selected out from non-recombinant ones by plating the transformants on ampicillin containing medium. |
Significant difference in percentage | Percentage of weight of Earth’s crust Human Body of Hydrogen (H) is 0.5 | 0.5 changed to 9.5. |
Change in description | Several mammary ducts join to form a wider mammary ampulla which is connected to lactiferous duct through which milk is sucked out . | changed to milk is expressed |
Update in estimated age | Almost 20 billion years old . Huge clusters of galaxies comprise the universe | Changed to 13.8 billion years |
Correction in term | Pomnated flowers often have a single ovule in each ovary and numerous flowers packed into an inflorescence; a familiar example is the corn cob - the tassels you see are nothing but the stigma and style which wave in the wind to trap pollen grains. Wind-pollination is quite common in grasses | tassels changed to ears |
Change in nationality | Schwann (1839). a British Zoologist, studied different types of animal cells and reported that cells had a thin outer layer | British Zoologist changed to German Zoologist |
Change in description | The fluid matrix filling the cell is the cytoplasm. | A semi-fluid matrix called cytoplasm occupies the volume of the cell. |
Minor rephrasing | Only green plants and cyanobacteria can prepare their own food: by the process of photosynthesis | Only word is removed |
Classification update | Protozoans like Euglena have changed into | Protists like Euglena |
Change in spelling and addition of word | It was ẞ-plated sheet and Hydrogen | Change in spelling of ẞ-pleated and addition of 'Bond' after Hydrogen. |
Change of definition of IRV and ERV |
| Additional volume of air is deleted in the definition of IRV and ERV |
Change in classification | In the line-’hyod is included in the skull. | It has been deleted |
Significant change in value | The melting point of Etcosane was 236.2 | Changed to 309.7 |
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