The instructions and content for a "LIFE SCIENCES" Paper II examination booklet.
Examination Details and Instructions
Structure: The test consists of 50 multiple-choice questions.
Marks and Duration: Candidates are allotted 1 hour and 15 minutes to complete the exam, which carries a maximum of 100 marks.
Evaluation: There are no negative marks for incorrect answers.
Conduct:
Candidates must use only a Blue or Black ballpoint pen to mark the OMR sheet.
The use of calculators, log tables, or electronic devices is strictly prohibited.
Rough work must be conducted at the end of the booklet.
Candidates must check the booklet for missing pages or discrepancies within the first five minutes of the exam.
Writing one's name or adding identifying marks on the OMR sheet, outside of designated areas, may result in disqualification.
Academic Subject Coverage: The examination evaluates knowledge across several Life Sciences disciplines:
Molecular Biology & Genetics: Topics include DNA replication at the replication fork, mRNA processing, chromatin organization, Southern hybridization, gene definition, and evolutionary mechanisms such as isolating mechanisms, the synthetic theory of evolution, and fossil patterns.
Metabolism & Physiology: Questions cover enzyme kinetics (e.g., Hexokinase and Glucokinase), the Krebs cycle, the electron transport chain, and respiratory quotient (R.Q.) calculations.
Ecology: The paper addresses ecological succession, sources of air pollution, and information regarding notified biosphere reserves.
General Biology: Additional topics include the complement cascade in immunology, mammalian dental formulas, and blood group systems.
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