Maharashtra HSC Biology study guide
Maharashtra HSC Biology · Work through your exam, one topic at a time.
The Maharashtra HSC Biology paper is the Class 12 biology examination set by the Maharashtra State Board of Secondary and Higher Secondary Education (MSBSHSE). It is taken by Science-stream students who need biology as a subject for their higher secondary certificate, and it is the usual route into medical, paramedical, agricultural, biotechnology and pure-science degree courses in the state. The Maharashtra HSC Biology study guide has 11 sections and about 3,310 words.
01Genetic Basis of Inheritance and Molecular Basis of Inheritance
This domain combines Mendelian inheritance with molecular genetics: solving crosses, interpreting pedigrees, and explaining how DNA stores and expresses information. Questions often link a genetic ratio to a molecular mechanism rather than asking recall alone.
311 words, about 2 min02Genetic Engineering and Genomics
Genetic engineering and genomics questions ask you to order the steps of recombinant DNA technology, choose tools correctly, and explain applications such as PCR, DNA fingerprinting, and gene therapy. Genomics includes the Human Genome Project and comparative genomics.
318 words, about 2 min03Cell Cycle, Cell Division and Reproduction in Organisms
This domain tests the cell cycle, mitosis, meiosis, and how organisms reproduce asexually and sexually. You should track chromosome and DNA amounts through division and explain how meiosis generates variation.
297 words, about 1 min04Human Reproduction and Reproductive Health
Human reproduction and reproductive health cover gametogenesis, the menstrual cycle, fertilization, pregnancy, contraception, sexually transmitted diseases, and assisted reproductive technologies. Questions often ask for the sequence of hormonal events or the correct site of a process.
299 words, about 1 min05Plant Water Relations, Mineral Nutrition and Photosynthesis
This domain connects plant water relations, mineral nutrition, and photosynthesis. Expect questions on water potential, transpiration, essential elements, deficiency symptoms, light reactions, the Calvin cycle, and C4/CAM adaptations.
319 words, about 2 min06Respiration and Plant Growth and Development
Plant respiration and growth and development include aerobic and anaerobic respiration, the respiratory quotient, growth phases, plant hormones, photoperiodism, vernalization, and seed dormancy. Glycolysis occurs in the cytoplasm; the Krebs cycle and electron transport chain occur in mitochondria.
299 words, about 1 min07Human Nutrition, Respiration and Body Fluids and Circulation
This section covers human nutrition, respiration, body fluids, and circulation. Questions test digestive enzymes, absorption, gas transport, blood composition, blood groups, cardiac cycle, and ECG.
326 words, about 2 min08Excretion, Locomotion and Neural Control and Coordination
Excretion, locomotion, and neural control and coordination cover kidney function, urine formation, osmoregulation, muscle contraction, the skeleton, neurons, nerve impulses, synapses, and the reflex arc. The nephron forms urine by glomerular filtration, tubular reabsorption, and tubular secretion.
280 words, about 1 min09Chemical Coordination, Homeostasis and Animal Behaviour
Chemical coordination, homeostasis, and animal behaviour test endocrine glands, hormone actions, feedback loops, thermoregulation, osmoregulation, blood glucose regulation, and types of behaviour. The hypothalamus controls the pituitary; the anterior pituitary secretes FSH, LH, TSH, ACTH, GH, and prolactin.
278 words, about 1 min10Origin and Evolution of Life
Origin and evolution of life includes chemical evolution, evidence for evolution, natural selection, Hardy-Weinberg equilibrium, genetic drift, speciation, and human evolution. Oparin and Haldane proposed chemical evolution; Miller and Urey produced amino acids from simple gases.
273 words, about 1 min11Ecosystems and Environmental Issues
Ecosystems and environmental issues cover ecosystem structure, energy flow, ecological pyramids, nutrient cycles, pollution, greenhouse effect, ozone depletion, biodiversity loss, and conservation. Ecosystems have biotic components (producers, consumers, decomposers) and abiotic components.
310 words, about 2 min