341 public questions tagged with this topic.
Smaller DNA fragments migrate faster through the gel than larger fragments due to lower resistance. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Principles of Inheritance, Molecular Basis of Inheritance and Biotechnology, Topic: Genetics, DNA techniques and applications.
DNA is negatively charged and moves toward the positive electrode (anode) in gel electrophoresis. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Principles of Inheritance, Molecular Basis of Inheritance and Biotechnology, Topic: Genetics, DNA techniques and applications.
Gel electrophoresis requires a gel matrix (commonly agarose) to separate DNA fragments based on size. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Principles of Inheritance, Molecular Basis of Inheritance and Biotechnology, Topic: Genetics, DNA techniques and applications.
Gene cloning has numerous applications in medical research, including gene therapy and pharmaceutical production. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Biology - Zoology portion covering relevant system and function.
Gene cloning is a process used to produce identical copies of a specific gene through recombinant DNA technology. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.
Ref: NCERT Biology Textbook - Latest Edition for Academic Session 2026-27 (Zoology section, Rationalized Textbook for Class XI and XII), Chapter: Biology - Zoology portion (Latest NCERT Textbooks for Academic Session 2026-27 - Rationalized Edition for Class XI and XII), Topic: Structural organization, physiology, human health and related concepts as per latest syllabus.
Gene cloning produces identical copies of a gene for research, medicine, and agriculture through recombinant DNA technology. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Principles of Inheritance, Molecular Basis of Inheritance and Biotechnology, Topic: Genetics, DNA techniques and applications.
Not all veins carry deoxygenated blood. **Pulmonary veins** carry **oxygenated blood** from the lungs to the heart. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.
Ref: NCERT Biology Textbook - Latest Edition for Academic Session 2026-27 (Zoology section, Rationalized Textbook for Class XI and XII), Chapter: Biology - Zoology portion (Latest NCERT Textbooks for Academic Session 2026-27 - Rationalized Edition for Class XI and XII), Topic: Structural organization, physiology, human health and related concepts as per latest syllabus.
Given: The dimensional formula of angular velocity is [T^{-1] . Which quantity shares the same dimensions? These values define the system as per NCERT data. Formula: (a) [v / r] = [L T^{-1] / [L] = [T^{-1]. This is the standard NCERT relation for this phenomenon. Substitution & Calculation: (b) [a t] = [L T^{-2] [T] = [L T^{-1] . (c) [F / m] = [M L T^{-2] / [M] = [L T^{-2] . (d) [s / t] = [L] / [T] = [L T^{-1] . (a) matches. Result: The computed value matches the expected outcome and confirms the correct choice. Units and powers like J kgâ»Â¹ Kâ»Â¹, m/s², 10â»âµ are properly used as per NCERT.
Ref: NCERT Physics Textbook for Class XI and XII, Chapter: Units and Measurements and Physical World, Topic: Dimensional analysis and fundamental principles.
Given: The dimensional formula of angular acceleration is [T^{-2] . Which quantity shares the same dimensions? These values define the system as per NCERT data. Formula: (a) [v² / r²] = [L T^{-1]² / [L]² = [T^{-2]. This is the standard NCERT relation for this phenomenon. Substitution & Calculation: (b) [a / r] = [L T^{-2] / [L] = [T^{-2] . (c) [F / m r] = [M L T^{-2] / [M L] = [T^{-2] . (d) [v t / r] = [L T^{-1] [T] / [L] = [Tâ°] . (b) matches (simplest match chosen). Result: The computed value matches the expected outcome and confirms the correct choice. Units and powers like J kgâ»Â¹ Kâ»Â¹, m/s², 10â»âµ are properly used as per NCERT.
Ref: NCERT Physics Textbook for Class XI and XII, Chapter: Units and Measurements and Physical World, Topic: Dimensional analysis and fundamental principles.
The cranium is a bony structure that encloses and protects the brain. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Human Physiology - Digestion, Respiration, Circulation, Neural Control and Chemical Coordination, Topic: Organ system functions and hormonal regulation.
Typhoid fever is caused by the bacterium Salmonella typhi, which spreads through contaminated food and water. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.
Ref: NCERT Biology Textbook - Latest Edition for Academic Session 2026-27 (Zoology section, Rationalized Textbook for Class XI and XII), Chapter: Biology - Zoology portion (Latest NCERT Textbooks for Academic Session 2026-27 - Rationalized Edition for Class XI and XII), Topic: Structural organization, physiology, human health and related concepts as per latest syllabus.
Prions are infectious proteins that lack both DNA and RNA, unlike viruses and viroids. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.
Ref: NCERT Biology Textbook - Latest Edition for Academic Session 2026-27 (Botany section, Rationalized Textbook for Class XI and XII), Chapter: Biology - Botany portion (Latest NCERT Textbooks for Academic Session 2026-27 -
