Latest questions in this category.
Southern blotting is a molecular biology technique used to detect specific DNA sequences in a sample. 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.
Bacillus thuringiensis (Bt) toxin provides resistance to insect pests, reducing the need for chemical pesticides. 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.
Macrophages act as antigen-presenting lls (APCs) by processing and displaying antigens to T-lymphocytes for immune response activation. 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 Health and Disease, Topic: Immunity, diseases and health maintenance.
The rebrum is the largest part of the brain and is responsible for higher cognitive functions like reasoning and memory. 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.
Red muscle fibers are fatigue-resistant due to high myoglobin and abundant mitochondria, allowing sustained aerobic activity​. 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: Structural Organisation in Animals and Frog, Topic: Tissues, skeletal and organ systems.
Macaca (monkey) is a mammal and is viviparous, meaning it gives birth to live young. 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.
The testes in male frogs produce sperm, which are released through the urinogenital duct. 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: Structural Organisation in Animals and Frog, Topic: Tissues, skeletal and organ systems.
Monosaccharides are the simplest carbohydrates. Polysaccharides are made of sugar units, not nucleotides. Cellulose is structural, and sucrose is a disaccharide.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Biology - Zoology portion covering relevant system and function.
Platelets (thrombocytes) play a crucial role in blood clotting by forming a platelet plug at the site of injury. 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.
Gout is caused by the accumulation of uric acid crystals in joints, leading to inflammation and pain. 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.
Tropomyosin covers myosin-binding sites on actin filaments in relaxed muscles, preventing contraction. 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: Structural Organisation in Animals and Frog, Topic: Tissues, skeletal and organ systems.
Avoiding multiple sexual partners and practicing safe sex (e.g., using condoms) are important preventive measures against STIs. 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.
