Latest questions in this category.
The Genetic Engineering Approval Committee (GEAC) is responsible for approving and regulating genetic modification research and its applications in India.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Biotechnology and its Applications, Topic: GEAC, approval of GM research and applications in India.
The aorta is the largest artery that carries oxygenated blood from the left ventricle to the body. This follows from NCERT principle where relation explains outcome clearly for students.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Body Fluids and Circulation, Topic: Blood vessels, aorta carries oxygenated blood from left ventricle.
Hugo de Vries suggested that mutations cause large, sudden evolutionary changes, a process he termed ‘saltation’. This follows from NCERT principle where relation explains outcome clearly for students.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Evolution, Topic: Hugo de Vries, saltation, mutations as primary cause of evolution.
Aldosterone, a mineralocorticoid secreted by the adrenal cortex, increases sodium reabsorption in the kidneys. This follows from NCERT principle where relation explains outcome clearly for students.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Chemical Coordination and Integration, Topic: Aldosterone, mineralocorticoid, sodium reabsorption in kidney.
Tuberculosis is an infectious disease but is not sexually transmitted. This follows from NCERT principle where relation explains outcome clearly for students.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Reproductive Health, Topic: STIs, syphilis, gonorrhea, tuberculosis not STI.
Uracil replaces thymine in RNA, whereas thymine is present in DNA. This follows from NCERT principle where relation explains outcome clearly for students.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Molecular Basis of Inheritance, Topic: Nitrogenous bases, uracil in RNA, thymine in DNA.
Electroporation uses an electric field to create pores in the ll membrane, allowing DNA to enter animal lls. This follows from NCERT principle where relation explains outcome clearly for students.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Biotechnology Principles and Processes, Topic: Gene transfer into animal cells, electroporation method.
Cartilaginous fishes lack a swim bladder, which is present in bony fishes for buoyancy control. This follows from NCERT principle where relation explains outcome clearly for students.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Animal Kingdom, Topic: Chondrichthyes, cartilaginous skeleton, absence of swim bladder, placoid scales.
Cancer lls lose the property of contact inhibition, allowing them to grow uncontrollably and invade surrounding tissues. This follows from NCERT principle where relation explains outcome clearly for students.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Human Health and Disease, Topic: Cancer cells, loss of contact inhibition, uncontrolled division.
DNA probes are used in molecular diagnostics to detect specific DNA sequences by hybridizing with complementary sequences. This follows from NCERT principle where relation explains outcome clearly for students.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Biotechnology and its Applications, Topic: DNA probes, molecular diagnostics, hybridization for detection.
Pelvic Inflammatory Disease (PID) can cause infertility in females by blocking the fallopian tubes and affecting reproductive organs. This follows from NCERT principle where relation explains outcome clearly for students.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Biology - Zoology portion covering relevant system and function, Topic: Structural organization and physiology.
Enzymes work within specific pH and temperature ranges. Extreme conditions can denature them. This follows from NCERT principle where relation explains outcome clearly for students.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Biology - Zoology portion covering relevant system and function, Topic: Structural organization and physiology.
