Read objective multiple choice questions on ‘Plant Breeding Multiple Choice Questions (MCQ) from the major subject Genetics and Plant Breeding. The ICAR-syllabus based questions are important for the students of B. Sc. and M. Sc. Agriculture who are preparing for different agricultural competition exams.
Questions are based on ICAR syllabus.
Topics:
Plant Genetics
- History.
- Genes.
- Genetic variation.
- Heredity.
- Gregor mendel.
- Polyploidy.
- Chloroplast.
- Mitochondria.
- DNA.
- RNA.
- Mutation.
- Genetic engineering etc.
Plant Breeding
- Germplasm.
- Center of diversity.
- Gene bank.
- Pollination.
- Apomixis.
- Incompatibility.
- Types of incompatibility.
- Hybridization.
- Heritability.
- Sterility.
- Methods of plant breeding.
- Heterosis.
- Plant varieties.
- Progeny test.
- Genetic variation.
- Pollen culture.
- Molecular marker.
- IPR.
- Plant tissue culture.
- Micro propagation etc.
- Genetically modified plant-crops.
New questions are added with each update.
For: ICAR JRF, SRF, NET, State Agricultural University Common Entrance Test and all others agricultural competition exams.
Plant Breeding (Genetics) Multiple Choice Questions
Answer key link(s) after each 5th MCQ
Question 01. The genetic material from …. gene pool leads to production of sterile hybrid on crossing with primary gene pool?
(a). Primary gene pool.
(b). Secondary gene pool.
(c). Tertiary gene pool.
(d). All of the above.
Question 02. The location of sugarcane breeding institute..?
(a). Coimbatore, Tamil Nadu.
(b). Hyderabad, Andhra Pradesh.
(c). Kanpur, Uttar Pradesh.
(d). Karnal, Haryana.
Question 03. The primary centre of origin exhibits..?
(a). More crossing over.
(b). Less crossing over.
(c). No crossing over.
(d). Any of the above.
Question 04. In parthenogenesis..?
(a). Fruit, with seeds, are formed from ovary without fertilization.
(b). Seedless fruits are formed from ovary without fertilization.
(c). Fruit, with seeds, are formed from ovary with fertilization.
(d). Seedless fruits are formed from ovary with fertilization.
Question 05. In apogamy..?
(a). Embryo develops from cells other than egg cells.
(b). An embryo develops from cells other than sac cells.
(c). Both a and b.
(d). An embryo develops from cells other than mother cell.
Question 06. Maize is a type of..?
(a). Imperfect flower.
(b). Perfect flower.
(c). Both a and b.
(d). None of the above.
Question 07. Geitenogamyis is a form of..?
(a). Self pollination.
(b). Cross pollination.
(c). Often cross pollination.
(d). None of the above.
Question 08. Sporophytic incompatibility was first described by …. in parthenium?
(a). Hughes, 1950.
(b). Babc_ck, 1950.
(c). Gerstel, 1950.
(d). Meldal, 1950.
Question 09. (1). The pollen – Stigma interaction. (2). The pollen tube – Style interaction. (3). The pollen tube – Ovule interaction are the mechanisms of..?
(a). Self incompatibility.
(b). Sporophytic incompatibility.
(c). Pseudo incompatibility.
(d). All of the above.
Question 10. The broad sense heritability is expressed mathematically as..?
(a). H = VG + VP.
(b). H = VG × VP.
(c). H = VP/VG.
(d). H = VG/VP.
Question 11. In cytoplasmic male sterility the F1 seeds produce only..?
(a). Male sterile plant.
(b). And, may also produce seed if pollinators are present.
(c). Both a and b.
(d). Male fertile plant.
Question 12. The male sterility is induced by using..?
(a). Zinc methyl arsenate.
(b). Sodium methyl arsenate.
(c). Both a and b.
(d). None of the above.
Question 13. The well known example of genetic engineering is..?
(a). Tomato.
(b). Rice.
(c). Cotton.
(d). Sugarcane.
Question 14. The concept of pureline was proposed by Johannsen on the basis of his studies with common bean variety..?
(a). Anasazi.
(b). Princess.
(c). Calypso.
(d). Pinto.
Question 15. The mass selection variety has a …. and … than a pureline variety.
(a). Wider adaptation, greater stability.
(b). Limited adaptation, lesser stability.
(c). Wider adaptation but lesser stability.
(d). Lesser adaptation but greater stability.
Plant breeding quiz
Question 16. In pedigree method individual plants are selected from …. generation?
(a). F1 generation.
(b). F2 generation.
(c). F3 generation.
(d). F4 generation.
Question 17. The single seed descent method is a modification of..?
(a). Pedigree method.
(b). Pureline selection method.
(c). Mass selection method.
(d). Bulk method.
Question 18. What is hardy-weinberg law?
(a). Gene and genotype frequencies in a mendalian population remain constant from generation after generation if there is no selection, mutation, migration or random drift.
(b). Gene and genotype frequencies in a mendalian population remain constant from generation after generation even after selection, mutation, migration or random drift.
(c). Both a and b.
(d). None of the above.
Question 19. …. is a random change in gene frequency due to sampling error?
(a). Genetic drift.
(b). Inbreeding.
(c). Genetic pool.
(d). None the above.
Question 20. Gossypium hirsutum is a..?
(a). Triploid.
(b). Tetraploid.
(c). Pentaploid.
(d). Hexaploid.
Question 21. A RNA plays role in..?
(a). Regulation and expression of gene.
(b). Coding.
(c). Decoding.
(d). All of the above.
Question 22. The Double Helix : A Personal Account of the Discovery of the Structure of DNA was published in..?
(a). 1966.
(b). 1967.
(c). 1968.
(d). 1969.
Question 23. J. D. Watson was a/an..?
(a). English molecular biologist.
(b). Australian molecular biologist.
(c). American molecular biologist.
(d). New Zealand molecular biologist.
Question 24. The crossing over and recombination occur during?
(a). Mitosis division.
(b). Meiosis division.
(c). Both a and b.
(d). None of the above.
Question 25. What is the phenotypic ratio of monocross hybrid?
(a). 1:3.
(b). 3:1.
(c). 2:1.
(d). 1:1.
Plant Breeding and Genetics Multiple Choice Questions