NEET-UG importance
Molecular tools and DNA analysis is a useful scoring area because questions often test direct NCERT wording, process sequence, and the ability to separate close distractors. Keep the revision tight and practice with explanations after each attempt.
How to practice this topic
Read the NCERT section first, mark definitions and examples, then solve MCQs in short sets. After each wrong answer, rewrite the reason in one line so the concept becomes recallable before a mock test.
Core concepts to revise
- Revise the NCERT definitions first, then solve short concept-check MCQs.
- Mark examples and exceptions because NEET Biology questions often test exact wording.
- Review every wrong option after practice so close distractors become easier to eliminate.
Common NEET traps
- Do not rely on memorized keywords without checking the full statement.
- Separate NCERT-level facts from advanced details that are not needed for NEET-UG.
Example MCQs and explanations
When analyzing genetic abnormalities, the method that detects DNA sequence linear nucleotide information is
Answer: C. DNA sequencing
DNA sequencing directly reads the linear nucleotide sequence of DNA, which is crucial for identifying genetic abnormalities.
Practice this MCQWhich of the following techniques uses restriction enzymes?
Answer: B. RFLP
Restriction Fragment Length Polymorphism (RFLP) analysis involves cutting DNA with specific restriction enzymes to generate fragments of different lengths, which can be used for genetic analysis.
Practice this MCQWhich of the following is not a commonly used nucleic acid molecular hybridization technique?
Answer: C. Western blotting
Western blotting is not a nucleic acid hybridization technique; it is used for protein analysis.
Practice this MCQPolyacrylamide gel electrophoresis has higher resolution than general electrophoresis due to its
Answer: B. molecular sieving effect
Polyacrylamide gel electrophoresis has higher resolution than general electrophoresis due to its molecular sieving effect, which allows separation based on the size of molecules.
Practice this MCQSDS polyacrylamide gel electrophoresis separates proteins based on
Answer: B. molecular weight size
SDS-PAGE separates proteins primarily based on their molecular weight, as the SDS coats the protein uniformly and gives it a uniform negative charge.
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