📚 Official Curriculum & AI Taxonomy Guide

Veterinary Biotechnology (Animal Sciences & Veterinary Sciences)

Deterministic two-level syllabus taxonomy (Subjects ➔ Chapters/Units + AI Keywords) with historical PYQ weightage and board examination patterns. Version: V1.

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Select Subject / Discipline:
All Subjects (Complete Syllabus) Biomolecules and their Interaction Relevant to Biology Cell Biology Fundamental Cellular Processes Cell Communication and Cell Signalling Molecular Biology and Recombinant DNA Methods Animal Tissue Culture and Hybridoma Technology Embryo Transfer and Related Techniques

⚙️ Exam Evaluation Pattern & Marking Scheme

Total Questions 100
Total Marks 300
Correct Answer +3
Negative Marking -1/3
Option Format: 5 Options (5th Option Mandatory: 'अनुत्तरित प्रश्न')

🤖 AI Extractor Directives & Mapping Rules

## Instructions for AI Question Extractor & Taxonomy Mapper

When extracting questions and generating Schema v2.0 JSON packages, the AI model MUST strictly adhere to the following deterministic taxonomy protocol:

### 1. Deterministic Ground-Truth ID Assignment
Every extracted question MUST be mapped using the exact database integer IDs from this specification:
- `subject_id`: Integer ID of the Part / Section (e.g., `64` for General Hindi).
- `subject_name`: Canonical title of the Part (e.g., `सामान्य हिन्दी`).
- `subject_slug`: Canonical slug of the Part (e.g., `general-hindi`).
- `chapter_id`: Integer ID from the **Topic ID** column (e.g., `451`).
- `chapter_name`: Canonical title from the **Topic Name** column.
- `chapter_slug`: Slug from the **Topic Slug** column.
- `subtopic_id`: Integer ID from the **Subtopics (Level 3)** column if an atomic subtopic matches, otherwise `null`.
- `subtopic_name`: Subtopic title if mapped, otherwise `null`.
- `subtopic_slug`: Subtopic slug if mapped, otherwise `null`.
- `key_concept`: The specific atomic concept tested by the question (e.g., 'वृद्धि स्वर संधि', 'नागौरी गाय की विशेषताएं', 'अमोनियम सल्फेट में नत्रजन प्रतिशत').

### 2. JSON Mapping Target Schema
```json
{
"subject_id": 64,
"subject_name": "सामान्य हिन्दी",
"subject_slug": "general-hindi",
"chapter_id": 451,
"chapter_name": "संधि एवं संधि-विच्छेद",
"chapter_slug": "sandhi",
"subtopic_id": null,
"subtopic_name": null,
"subtopic_slug": null,
"key_concept": "वृद्धि स्वर संधि",
"question_type": "mcq_single"
}
```

### 3. Core Extraction Rules
- **Strict Section Boundary Isolation**: Respect examination paper sections. Map Hindi questions strictly to Subject ID 64, Rajasthan GK questions to Subject ID 34, Agronomy questions to Subject ID 74, Horticulture to Subject ID 75, and Animal Husbandry to Subject ID 65. Never cross-map questions across disciplines.
- **Strict Canonical Hierarchy**: Map every question extracted from papers for this examination strictly to one of the canonical Units/Chapters listed in the tables below. Do not fabricate or invent new chapter names or IDs.
- **Question Format Auto-Detection**: Identify and classify the question format strictly:
- Standard 4 or 5 options with 1 correct key: `mcq_single`
- Contains Statement I and Statement II or multiple statements: `statement`
- Contains List I and List II or matching columns: `match_list`
- Requires chronological arrangement or step sequence: `chronological_order`
- Contains Assertion (A) and Reason (R): `assertion_reason`
- **Semantic Keyword Anchors**: Use the 'AI Recognition Keywords' listed in the tables as primary semantic triggers. Matching question stems and option terminologies against these keywords provides high-confidence taxonomy assignment.
- **Out of Syllabus Preservation**: If an extracted historical PYQ belongs to a topic marked with `[OUT_OF_SYLLABUS]`, map it to that designated unit and flag `is_out_of_current = 1`. This preserves year-on-year historical practice.
- **Bilingual Terminology**: Ensure both Hindi (Devanagari) and English scientific terms are recognized according to the bilingual titles and keyword lists provided.

Curriculum Units & AI Recognition Dictionary

Biomolecules and their Interaction Relevant to Biology

4 Chapters / Units
Keywords: Steric clashes in polypeptide backbones allowed and disallowed regions of Ramachandran plot for different amino acids non-covalent stabilizing forces (hydrogen bonding hydrophobic interactions van der Waals electrostatic forces) and protein folding thermodynamics
Keywords: Helical geometries of B-DNA A-DNA and left-handed Z-DNA G-quadruplexes major and minor groove dimensions sequence-specific recognition of DNA bases from helix edges via hydrogen bonding patterns and shape complementarity
Keywords: Protein folding funnels molten globule intermediate state molecular chaperones (Hsp70 GroEL/GroES chaperonins) allosteric transition models (Monod-Wyman-Changeux concerted vs Koshland-Nemethy-Filmer sequential model) and Hill coefficient
Keywords: Circular Dichroism (CD) spectroscopy for determining alpha-helical and beta-sheet secondary structure content X-ray crystallography for atomic 3D coordinates nuclear magnetic resonance (NMR) spectroscopy in solution and isothermal titration calorimetry (ITC)

Cell Biology

5 Chapters / Units
Keywords: Asymmetric lipid bilayer cholesterol and sphingolipid-rich lipid microdomains (lipid rafts) caveolae protein targeting and translocation across endoplasmic reticulum (signal hypothesis SRP Sec61 translocon) and nuclear pore complex transport (importins/exportins Ran-GTPase)
Keywords: Organelle biogenesis: Peroxisomes (absence of DNA and ribosomes replication by division of existing organelles catalase and fatty acid alpha/beta oxidation) vs semi-autonomous mitochondria and chloroplasts containing circular DNA and prokaryotic-like ribosomes; Golgi cisternae and vesicular transport
Keywords: Tubulin heterodimers and microtubule dynamic instability actin microfilaments and treadmilling cell motility intermediate filament tissue specificity molecular motor proteins: Kinesin (plus-end directed) dynein (minus-end directed) and myosins
Keywords: Sequential activation of Cyclin-CDK complexes: G1/S cyclin D-CDK4/6 G1/S cyclin E-CDK2 S phase cyclin A-CDK2 M phase cyclin B-CDK1; G1 DNA damage checkpoint (p53-p21 axis) G2/M DNA replication checkpoint spindle assembly checkpoint (SAC) and replicative cellular senescence
Keywords: Extrinsic death receptor pathway (FasL TNF-alpha FADD Caspase-8/10); Intrinsic mitochondrial pathway (Bcl-2 family proteins cytochrome c release Apaf-1 apoptosome assembly Caspase-9); Downstream executioner caspases (Caspase-3 6 7) DNA fragmentation and phagocytic clearance

Fundamental Cellular Processes

6 Chapters / Units
Keywords: High-fidelity eukaryotic DNA replication licensing factors (ORC Cdc6 Cdt1 MCM helicase) PCNA clamp telomerase ribonucleoprotein complex and telomere maintenance site-specific recombination systems: Cre-LoxP recombination and Flp-FRT engineering
Keywords: Mechanisms of base excision repair (BER) nucleotide excision repair (NER global genome and transcription-coupled) mismatch repair (MSH/MLH) non-homologous end joining (Ku70/80 DNA-PKcs) and RAD51-mediated homologous recombination repair
Keywords: Eukaryotic transcription initiation: RNA Polymerase I II and III transcription factor complexes (TFIIA-TFIIH) distal enhancers mediator complex riboswitches (DNA/RNA sequences undergoing conformational shifts upon metabolite binding to modulate transcription) and eukaryotic tRNA synthesis catalyzed by RNA Polymerase III
Keywords: Pre-mRNA processing: Spliceosome snRNP assembly (U1 U2 U4 U5 U6) branch site adenosine and lariat intermediate alternative splicing generating proteomic diversity 5' cap addition cleavage and polyadenylation specificity factors and enzymatic RNA editing (A-to-I and C-to-U deamination)
Keywords: Eukaryotic 80S ribosome assembly (40S and 60S subunits) initiation factor eIF4F cap-binding complex translation elongation cycle polysome profiling for translatome analysis probing transcriptome with mRNAs bound to actively translating ribosomes translational pausing and ribosomal stalling
Keywords: DNA cytosine methylation by DNMT1/DNMT3a/b CpG islands histone lysine methylation and acetylation (writers erasers readers) chromatin remodeling SWI/SNF complexes microRNA (miRNA) biogenesis via Drosha/Dicer and RISC-mediated translational repression short interfering RNA (siRNA) and long non-coding RNAs (lncRNAs)

Cell Communication and Cell Signalling

5 Chapters / Units
Keywords: Heterotrimeric G-protein architecture (G-alpha beta gamma) Gs/Gi regulation of adenylyl cyclase cyclic AMP (cAMP) and Protein Kinase A (PKA) activation; Gq activation of Phospholipase C-beta (PLC) cleavage of PIP2 to inositol 1 4 5-trisphosphate (IP3) and diacylglycerol (DAG) calcium mobilization and Protein Kinase C (PKC)
Keywords: Ligand-induced dimerization and autophosphorylation of receptor tyrosine kinases (EGFR IGFR FGFR) adaptor proteins (Grb2 Sos) Ras GTPase activation Raf-MEK-ERK mitogen-activated protein kinase cascade PI3K-Akt-mTOR survival pathway and PTEN regulation
Keywords: Nitric oxide synthase (NOS) isoenzymes (eNOS nNOS iNOS) catalyzing deamination of L-arginine to nitric oxide (NO) and L-citrulline; Diffusion of NO across membranes activation of soluble guanylyl cyclase (sGC) generation of cyclic GMP (cGMP) Protein Kinase G (PKG) activation smooth muscle relaxation and vascular homeostasis
Keywords: Calcium-dependent homophilic cadherin adhesion catenin linkages to actin cytoskeleton integrin alpha/beta heterodimers mediating cell-matrix anchorage to fibronectin/laminin/collagen focal adhesion kinase (FAK) mechanotransduction selectin-mediated leukocyte rolling
Keywords: Multi-hit hypothesis of carcinogenesis gain-of-function proto-oncogene mutations loss of heterozygosity in tumor suppressor genes (Retinoblastoma Rb TP53 'guardian of the genome') tumor angiogenesis (VEGF) metastatic invasion cascade (local invasion intravasation circulation survival extravasation and micrometastasis colonization)

Molecular Biology and Recombinant DNA Methods

7 Chapters / Units
Keywords: Enzymatic modification of DNA termini blunt-end vs cohesive-end ligation synthetic linkers and adaptors alkaline phosphatase dephosphorylation preventing vector recircularization directional cloning using non-compatible restriction enzyme pairs
Keywords: Vector capacity and architecture: Bacterial plasmids (up to 10 kb) phage lambda vectors (up to 20 kb) cosmids (up to 45 kb) Bacterial Artificial Chromosomes (BACs 100-300 kb) Yeast Artificial Chromosomes (YACs up to 1000 kb); Prokaryotic (pET/T7 promoter) vs eukaryotic expression hosts
Keywords: Genomic DNA fragmentation and library coverage calculation mRNA isolation via oligo(dT) cellulose reverse transcriptase synthesis of cDNA library screening by hybridization and immunological probing probing active translatome using ribosome-bound mRNAs
Keywords: Principles of standard PCR thermostable DNA polymerases (Taq Pfu proofreading) Real-Time quantitative PCR (qPCR) chemistries (SYBR Green intercalating dye vs TaqMan fluorogenic probes Ct value quantification) reverse-transcription PCR (RT-PCR) multiplex PCR and droplet digital PCR (ddPCR)
Keywords: Southern blotting for DNA fragment identification Northern blotting for RNA expression analysis Electrophoretic Mobility Shift Assay (EMSA/gel shift) for detecting sequence-specific DNA-protein complexes DNase I footprinting and high-density oligonucleotide microarrays
Keywords: First-generation Sanger chain-termination sequencing; Second-generation high-throughput sequencing: Illumina sequencing-by-synthesis utilizing reversible dye terminators and flow cell cluster generation; Third-generation long-read technologies: Pacific Biosciences (PacBio SMRT) and Oxford Nanopore strand sequencing
Keywords: Evolution of gene editing technologies: Zinc-Finger Nucleases (ZFNs) Transcription Activator-Like Effector Nucleases (TALENs) CRISPR-Cas9 adaptive immune system adapted for genome engineering single guide RNA (sgRNA) design Protospacer Adjacent Motif (PAM) recognition Cas9 double-strand break and non-homologous vs homology-directed repair outcomes

Animal Tissue Culture and Hybridoma Technology

6 Chapters / Units
Keywords: Enzymatic and mechanical tissue disaggregation for primary culture finite lifespan vs established continuous/immortalized cell lines complete culture media formulation (basal media DMEM/RPMI-1640 fetal bovine serum/FBS buffering systems antibiotics) contact inhibition subculturing and cell passaging
Keywords: Large-scale mammalian cell cultivation systems: Stirred-tank hollow-fiber and wave bioreactors; Anchorage-dependent cell attachment to microcarrier beads; Anchorage-independent selective culture and suspension cloning of transformed tumor cell lines
Keywords: Principles of low-temperature cell preservation: Intracellular ice crystallization damage permeable cryoprotective agents (dimethyl sulfoxide/DMSO at 5-10% glycerol) controlled-rate slow freezing (-1 deg C/min) vapor/liquid nitrogen storage (-196 deg C) and rapid thawing at 37 deg C to minimize recrystallization injury
Keywords: Kohler-Milstein hybridoma technique: Immunization of mice harvesting splenic B lymphocytes polyethylene glycol (PEG) or electrofusion with HGPRT-deficient myeloma partner cells selective culture in HAT medium (Hypoxanthine Aminopterin Thymidine): Aminopterin blocks de novo nucleotide pathway myeloma cells lacking HGPRT/TK fail to utilize salvage pathway and die unfused B cells have limited lifespan only surviving hybridomas produce monoclonal antibodies
Keywords: Chimeric Antigen Receptor T-cell (CAR-T) architecture: Single-chain variable fragment (scFv) antigen-recognition domain linked to CD3-zeta intracellular signalling domain and CD28/4-1BB costimulatory domains; Clinical application in refractory B-cell lymphomas and leukemias (CD19 targeting); Recombinant humanized therapeutic monoclonal antibodies
Keywords: Principles of flow cytometry: Hydrodynamic focusing forward scatter (FSC cell size) and side scatter (SSC internal granularity/complexity); Fluorochrome labeling; Fluorescence-Activated Cell Sorting (FACS); Cell cycle DNA quantitation using fluorescent intercalating stoichiometric dyes (propidium iodide DAPI) and gating strategies

Embryo Transfer and Related Techniques

5 Chapters / Units
Keywords: Endocrine induction of follicular recruitment and multiple ovulations: Equine chorionic gonadotropin (eCG/PMSG) with intrinsic FSH/LH activity pituitary FSH protocols in cattle human chorionic gonadotropin (hCG) triggering synchronous LH-like ovulation surge in laboratory mice and livestock donor protocols
Keywords: In vitro production (IVP) of embryos: Oocyte retrieval (transvaginal ultrasound-guided ovum pick-up/OPU) in vitro maturation (IVM) sperm capacitation and in vitro fertilization (IVF); Morphological and cytological criteria for fertilization confirmation in stained ova: Extrusion of second polar body presence of sperm tail in ooplasm and female/male pronuclei formation
Keywords: Pre-implantation genetic sex determination: Embryo biopsy (blastomere or trophectoderm aspiration) targeted PCR amplification of Y-chromosome-specific repetitive sequences (SRY BRY.1 bovine satellite sequences) Loop-Mediated Isothermal Amplification (LAMP) for field sexing and commercial cattle breeding management
Keywords: Principles of animal cloning: Enucleation of recipient metaphase II oocyte transfer of donor somatic cell nucleus via direct intra-cytoplasmic microinjection (cumulus cells in mice) or electrofusion artificial oocyte activation (calcium ionophore 6-DMAP) embryonic reprogramming historical milestones (Dolly sheep cumulus mice cloning) and xenotransplantation milestones (pig organ editing and transplantation)
Keywords: Methods for generating transgenic livestock: Pronuclear DNA microinjection lentiviral/retroviral transgenesis embryonic stem cell-mediated transgenesis gene targeting via CRISPR/Cas9; 'Gene farming' / molecular pharming: Production of pharmaceutical recombinant proteins in mammary gland milk (tissue-specific beta-lactoglobulin/casein promoters) and ethical considerations
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