Animal Husbandry & Plant Breeding — Practice Questions
Free NEET Biology multiple-choice questions on Animal Husbandry & Plant Breeding. Attempt each question and reveal the answer with a full explanation.
The name of Norman Borlaug is associated with- Green Revolution White Revolution Yellow Revolution Blue Revolution In plant breeding programmes, the entire collection (of plants/seeds) having all the diverse alleles for all genes in a given crop is called (1) Selection of superior recombinants (2) Cross-hybridisation among the selected parents (3) Evaluation and selection of parents. (4) Germplasm collection The two polypeptides of human insulin are linked together by :- Hydrogen bonds Phosphodiester bond Covalent bond Disulphide bridges “MOET” technique is used for super-ovulation in : Elephants Fish Cattles Chickens Continued self-pollination results in: Genetic drift Heterosis Inbreeding depression Polyembryony By which method was a new breed 'Hisardale' of sheep formed by using Bikaneri ewes and Marino rams? (1) Mutational breeding (2) Cross breeding (3) Inbreeding (4) Out crossing Which one of the following is the most abundant protein in the animals? Collagen Lectin Insulin Haemoglobin Mutations in plant cells can be induced by: Infrared rays Gamma rays Zeatin Kinetin Which of the following is not an objective of Biofortification in crops? Improve resistance to diseases Improve vitamin content Improve micronutrient and mineral content Improve protein content Breeding crops with higher levels of vitamins and minerals or higher proteins and healthier fats is called : Bio-remediation Bio-fortification Bio-accumulation Bio-magnification Select the incorrect statement. Inbreeding helps in accumulation of superior genes and elimination of undesirable genes Inbreeding increases homozygosity Inbreeding is essential to evolve purelines in any animal. Inbreeding selects harmful recessive genes that reduce fertility and productivity Which of the following is generally used for induced mutagenesis in crop plants - Gamma rays (from cobalt 60) Alpha particles X rays UV (260 nm) Which of the following is not a step in Multiple Ovulation Embryo Transfer Technology (MOET)? (1) Cow yields about 6-8 eggs at a time (2) Cow is fertilized by artificial insemination (3) Fertilized eggs are transferred to surrogate mothers at 8-32 cell stage (4) Cow is administered hormone having LH like activity for super ovulation Which one of the following is NOT an advantage of inbreeding? It decreases homozygosity. It exposes harmful recessive genes but are eliminated by selection. Elimination of less desirable genes and accumulation of superior genes takes place due to it. It decreases the productivity of inbred population, after continuous inbreeding. Three crops that contribute maximum to global food grain production are - Wheat, rice and maize Rice, maize and sorghum Wheat maize and sorghum Wheat, rice and barley The world's highly prized wool yielding 'Pashmina' breed is - Kashmir sheep-Afghan sheep cross Goat Sheep Goat-sheep cross Crop plants grown in monoculture are- Low in yield Free from intraspecific competition Characterised by poor root system Highly prone to pests In Maize, hybrid vigour is exploited by- Bombarding the protoplast with DNA Crossing of two inbred parental lines Harvesting seeds from the most productive plants Inducing mutations Triticale, the first man-made cereal crop, has been obtained by crossing wheat with (1) Rye (2) Pearl millet (3) Sugarcane (4) Barley Which one of the following pairs is mismatched? Apis indica - honey kenia lacca - lac Bombyx mori - silk Pila globosa - pearl In maize, hybrid vigour is exploited by crossing of two inbred parental lines harvesting seeds from the most productive plants inducing mutations bombarding the seeds with DNA.