Which of the following statements is not true in context of Bos... | Agrigyan

Q.5

Animal Genetics and Breeding- ICAR JRF/SRF 2024 (Q.100)

MCQ (Single Correct) +4 −1

Which of the following statements is not true in context of Bos taurus

X & Y chromosomes Submetacentric Chromosome number (2N) = 60 X & Y chromosomes Acrocentric Correct Total Autosomes = 58

Karyotype of Domestic Cattle (Bos taurus):
Diploid Chromosome Number ($2n$): 60.
Autosomes: 58 autosomes (29 pairs), and all autosomes are strictly acrocentric (telocentric).
Sex Chromosomes:
X Chromosome: Large submetacentric chromosome (second largest in the genome).
Y Chromosome: Small submetacentric chromosome in Bos taurus (in contrast, Bos indicus / Zebu cattle has an acrocentric Y chromosome).
False Statement: Statement (3) claiming "X & Y chromosomes Acrocentric" is false for Bos taurus.

Correct option: (3) X & Y chromosomes Acrocentric

Explanation not matching this question? क्या व्याख्या इस प्रश्न से मेल नहीं खा रही? Report

Want to practice this paper in exam conditions? क्या आप परीक्षा जैसे माहौल में अभ्यास करना चाहते हैं? Test yourself in 5-question batch format with timer and hidden answers. 5-प्रश्नों के बैच फॉर्मैट, टाइमर और छिपे उत्तरों के साथ खुद को परखें।

Start Practice Mode → प्रैक्टिस टेस्ट मोड शुरू करें →

General Agriculture

6 Topics

Agronomy, Tillage & Field Crop Production Cell Biology, Plant Physiology & Biochemistry Agricultural Entomology, Nematology & Crop Protection Agricultural Meteorology & Climate Science Soil Science, Plant Nutrition & Reclamation Crop Genetics, Plant Breeding & IPR

Basic and General Aspects of Livestock Products

3 Topics

Muscle Structure, Contractile Proteins, Fiber Types and Post-Mortem Glycolysis Milk Chemistry, True Constituents, Synthesis and Dairy Processing Principles Meat Processing Biochemistry: Emulsions, Binders, Curing and Water Holding Capacity

Energy and Proteins

3 Topics

Carbohydrate and Lipid Metabolism, Essential Fatty Acids and Bioenergetics Protein Nutrition, Essential Amino Acids, CNCPS System and Protein Degradability Energy Partitioning, Calorimetry, Gross, Digestible and Metabolizable Energy

Overview of Genetics

2 Topics

Mendelian Inheritance, Gene Interactions, Lethals and Multiple Alleles Linkage, Crossing Over, Recombination Mapping and Sex-Related Inheritance

Poultry Genetics and Breeding

2 Topics

Poultry Phylogeny, Taxonomy, Domestication and Standard Breed Classes Indigenous Indian Chicken and Avian Breeds and AnGR Conservation

Advanced Genetics

3 Topics

Recombinant DNA Technology, PCR, DNA Sequencing, Cloning and Transgenic Animals Molecular Genetics: Replication, Transcription, Genetic Code and Protein Synthesis Chromosome Banding, Chromatin Organization and Fine Structure of Genes

Breeding Management

1 Topic

Farm-Level Breeding Records, Pedigree Maintenance and Selection Methodologies

Minerals, Vitamins and Feed Additives

2 Topics

Fat-Soluble and Water-Soluble Vitamins: Chemistry, Bioavailability and Requirements Feed Additives, Prebiotics, Probiotics, Enzymes and UMMB Formulations

Poultry Nutrition

2 Topics

Mineral and Vitamin Nutrition: Calcium, Phosphorus, Trace Minerals and Deficiencies Energy and Protein Nutrition: Metabolizable Energy, Essential Amino Acids and Feeding Standards

Avian Physiology

1 Topic

Avian Respiratory System, Pneumatic Bones and Air Sac Anatomy

Feeding Management

1 Topic

Practical Ruminant Feeding: Dry Matter Intake, Thumb Rules and FCM Calculations

Overview of Breeding

3 Topics

Domestication, Evolution and Indian Breeds of Livestock and Poultry (AnGR) Active Heterosis, Combining Ability, Diallel Crosses and Reciprocal Recurrent Selection Mating Systems: Inbreeding, Linebreeding, Outbreeding and Grading Up

PFA and FSSAI Standards of Different Dairy Products

4 Topics

Fluid Milk Standards, Pasteurization Kinetics, Phosphatase Test and Homogenization Egg Science and Technology: Structure, Quality Grading, Preservation and Thermal Coagulation Processed Egg Products: Liquid Eggs, Egg Powder, Whipping Aids and Designer Eggs Clean-in-Place (CIP) Systems, Detergents, Sanitizers and Dairy Plant Hygiene

Rumen Eco-system and Functions

1 Topic

Rumen Microbiology: Bacteria, Protozoa, Fungi and Archaeal Methanogens

Genetic Properties of Population

3 Topics

Hardy-Weinberg Equilibrium, Gene Frequencies and Forces Altering Gene Frequency Metric Traits, Population Mean, Breeding Values and Average Effect of Gene Substitution Components of Phenotypic Variance and Resemblance Between Relatives

Poultry Products Technology

1 Topic

Egg Preservation, Storage, Spoilage Microbiology and Pasteurization

Reproduction Management

1 Topic

Artificial Insemination Practice, Pregnancy Diagnosis, Infertility and Calving Management

Wool, Mohair and Fur

1 Topic

Wool Processing: Scouring, Carbonization, Carding, Combing (Tops/Noils) and Finishing

Population Genetics

3 Topics

Heritability, Repeatability and Genetic Correlations: Concepts and Estimation Selection Response, Correlated Response and Selection Limits Threshold Characters, Genotype-Environment Interaction (GxE) and Canalization

Poultry Management

1 Topic

Grower, Pullet and Layer Management: Space, Lighting Regimes and Debeaking

Shelter Management

1 Topic

Housing Systems: Loose Housing, Stanchion Barns, Space Requirements and BIS Norms

Forage Conservation and Evaluation

2 Topics

Silage Making Technology: Microbiology, Fermentation Phases and Quality Standards Hay Making, Artificial Dehydration and Forage Preservation Principles

Genetic Strategies

1 Topic

Reproductive Technologies in Breeding: AI, Cryopreservation, MOET and ONBS

Health Management

1 Topic

Preventive Herd Health: Vaccination, Deworming Schedules and Common Livestock Diseases

Production and Management of Cattle and Buffalo

1 Topic

Dairy Cattle and Buffalo Breeds: Distribution, Phenotypic Standards and Adaptation

Selection & Selection Experiments

3 Topics

Sire Evaluation, Contemporary Comparison, Least-Squares and BLUP Methodologies Selection Methods: Mass, Pedigree, Family Selection and Selection Intensity Multi-Trait Selection Indices, Tandem Selection and Independent Culling Levels

Genetic Laboratory Techniques

1 Topic

Molecular Markers (RFLP, Microsatellites, SNPs) and Genomic Selection in Livestock

Production and Management of Other Animals

2 Topics

Camel, Yak and Pack Animal Management: Draft Norms, Churpi and Arid Adaptation Commercial Poultry Management: Broiler, Layer Housing, Lighting and Nutrition Norms

Research Techniques for Quantitative Animal Genetics

2 Topics

Computer Applications, Database Management and Correction for Non-Genetic Factors Estimation of Variance Components: ANOVA, Henderson Methods, ML and REML

Laboratory Animal Breeding

2 Topics

Breeding Systems for Lab Animals: Inbred Strains, Outbred Stocks and Transgenic/Knockout Lines Biology, Reproductive Parameters and Management of Common Laboratory Animals

Animal Genetics and Breeding- ICAR JRF/SRF 2024

120 Questions Bilingual

RPSC Agriculture Exams

5 Exams

Food Safety Officer Assistant Agriculture Officer Agriculture Officer RPSC Agriculture Research Officer RPSC AARO

RSSB Agriculture Exams

1 Exam

RSSB Agriculture Supervisor

National & PG Entrances

4 Exams

ICAR AIEEA PG CUET UG Rajasthan Agriculture Pre-PG ICAR JRF/SRF