MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 365 Mcqs, each offering curated multiple-choice questions to sharpen your Agriculture knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
Organisms that can synthesize all their substances from simple inorganic molecules are termed as____________________? |
| A. | Audacious |
| B. | Autotrophic |
| C. | Heterotrophic |
| D. | Phototrophic |
| Answer» C. Heterotrophic | |
| 152. |
Organism arise from existing forms by genetic variations is called_________________? |
| A. | Mutation |
| B. | Genetics |
| C. | Genetics |
| D. | Hybridization |
| Answer» C. Genetics | |
| 153. |
Organic evolution through large discontinuous variations was propound by__________________? |
| A. | Mendel |
| B. | Darwin |
| C. | Huge and Vnes |
| D. | Lamak |
| Answer» D. Lamak | |
| 154. |
One of the persons whose evolutionary ideas were close to that of Laraarcd was____________________? |
| A. | Lysendo |
| B. | Vavilow |
| C. | Weismann |
| D. | H be vnes |
| Answer» B. Vavilow | |
| 155. |
One of the following is not an advantage of genetic engineering___________________? |
| A. | Microbes act as biological factories |
| B. | Improvement of crop can take place |
| C. | The gene pool is maintained |
| D. | Genetic error can be rectified |
| Answer» D. Genetic error can be rectified | |
| 156. |
One of the following is not a technique in hybridization_________________? |
| A. | Bagging |
| B. | Inter over crossing |
| C. | Intraspecific crossing |
| D. | Inosculation |
| Answer» E. | |
| 157. |
Occurrence of cells in diploid organisms containing multiples of the 2n genomes is known as____________________? |
| A. | Allopolyploid |
| B. | Amphidiploids |
| C. | End polyploidy |
| D. | Aneupoidy |
| Answer» D. Aneupoidy | |
| 158. |
Nutritional quality breeding deals with genetic improvement in__________________? |
| A. | Oil |
| B. | Protein |
| C. | Vitamin |
| D. | All the above |
| Answer» E. | |
| 159. |
Number of lindage groups of chromosomes____________________? |
| A. | Diploid number of chromosomes |
| B. | Tetraploid number of chromosomes |
| C. | Haploid number of chromosomes |
| D. | None of the above |
| Answer» D. None of the above | |
| 160. |
Norine 10 is the source of dwarfing gene in________________? |
| A. | Wheat |
| B. | Rice |
| C. | Barley |
| D. | Oat |
| Answer» B. Rice | |
| 161. |
Nobel prize for the discovery of operon model was awarded to__________________? |
| A. | Jacob and monod (1965) |
| B. | Crick (1966) |
| C. | Watson and Crick (1953) |
| D. | Briuen and Davidson (1959) |
| Answer» B. Crick (1966) | |
| 162. |
Neurotoxin is found in___________________? |
| A. | Pearl millet |
| B. | Berseem |
| C. | Lucem |
| D. | Sorghum |
| Answer» E. | |
| 163. |
Name chromosome was coined by ___________________? |
| A. | Van Beneden |
| B. | T. Boveri |
| C. | Walleye |
| D. | Aluman |
| Answer» D. Aluman | |
| 164. |
Mutation was first discovered by________________? |
| A. | deVries (1900) |
| B. | Morgan (1910) |
| C. | Stadler (1928) |
| D. | Wright (1791) |
| Answer» E. | |
| 165. |
Mutation breeding is mostly used in____________________? |
| A. | Self pollinated crops |
| B. | Cross pollinated crops |
| C. | Vegetative propagated crops |
| D. | Often cross pollinated crops |
| Answer» B. Cross pollinated crops | |
| 166. |
Mutant allele that has little or no effect on the expression of a tart is known as_____________________? |
| A. | Atavism |
| B. | Auxotroph |
| C. | Axoneme |
| D. | Armor |
| Answer» E. | |
| 167. |
mitosis is the normal process in a living cell but sudden and abnormal mitosis in an organ will some time result in__________________? |
| A. | Cancer |
| B. | Zygote |
| C. | Gastrula |
| D. | New organ |
| Answer» B. Zygote | |
| 168. |
Mendel was lucky to use pea plants for genetical experiments because__________________? |
| A. | They showed one type of flowers |
| B. | they belong to the family leguminous |
| C. | The seven characters he studied were on different chromosomes |
| D. | They have round seeds with lot of proteins |
| Answer» D. They have round seeds with lot of proteins | |
| 169. |
Mendel studied contrasting characters for his breeding cxperiments with peas which of the following character he did not study_______________? |
| A. | Pod color |
| B. | Pod shape |
| C. | Plant height |
| D. | Leaf shape |
| Answer» E. | |
| 170. |
Meiosis is significant because___________________? |
| A. | Produces identical cells |
| B. | Restores original number of chromosomes |
| C. | Occurs only in somatic |
| D. | Doubling of DNA content in the cell |
| Answer» C. Occurs only in somatic | |
| 171. |
Maximum vegetable crops belong to the family____________________? |
| A. | Solanaceae |
| B. | Cruciferae |
| C. | Cucurbitaceae |
| D. | Legumunaceae |
| Answer» D. Legumunaceae | |
| 172. |
Maximum mutants varieties are evolved in_________________? |
| A. | Rice |
| B. | Wheat |
| C. | Barley |
| D. | Maize |
| Answer» B. Wheat | |
| 173. |
Maturation of stamens and pistils at different times in the same flower is called___________________? |
| A. | Heterostyle |
| B. | Dichotamy |
| C. | Heterospory |
| D. | Dichogamy |
| Answer» E. | |
| 174. |
Mating system in which each female gamete () with every male gamete is known as____________________? |
| A. | Genetic assortative mating |
| B. | Genetic disassortative mating |
| C. | Random mating |
| D. | None of the above |
| Answer» D. None of the above | |
| 175. |
Mating between distantly related individuals is known as________________? |
| A. | Inbreeding |
| B. | Out breeding |
| C. | Amphimixis |
| D. | All the above |
| Answer» C. Amphimixis | |
| 176. |
Mass pedigree method was developed by__________________? |
| A. | Harrington (1973) |
| B. | Falconer (1960) |
| C. | Vilomorin (1980) |
| D. | Allard (91400 |
| Answer» B. Falconer (1960) | |
| 177. |
Many groups of insects have developed resistance to DDT and other insecticides as a result of____________________? |
| A. | Crossing over |
| B. | Polyploidy |
| C. | Segregation |
| D. | Gene mutation |
| Answer» C. Segregation | |
| 178. |
Male sterility in flowering plants was first reported is__________________? |
| A. | Bateman (1952) |
| B. | Stout (1917) |
| C. | Koelreuter (1763) |
| D. | Braw baker (1958) |
| Answer» D. Braw baker (1958) | |
| 179. |
Male sterility in flowering plant was first reported by___________________? |
| A. | Stout (1917) |
| B. | Koelreuter (1763) |
| C. | Brewbaker (1810) |
| D. | Gerstel (1900) |
| Answer» C. Brewbaker (1810) | |
| 180. |
Maize has 10 pairs of chromosomes. how many linkage groups will be present if all the genes are mapped__________________? |
| A. | 10 |
| B. | 20 |
| C. | 20 |
| D. | 20 |
| Answer» B. 20 | |
| 181. |
Low magnitude of genotype x environmental interaction indicates__________________? |
| A. | High buffering capacity |
| B. | Stability |
| C. | Low buffering capacity |
| D. | Adaptability |
| Answer» B. Stability | |
| 182. |
Liposome’s originated from____________________? |
| A. | Plastids |
| B. | Ribosomes |
| C. | Mitochondria |
| D. | Leucoplasts |
| Answer» B. Ribosomes | |
| 183. |
Linked gene may be separated by the process of_________________? |
| A. | Evolution may be described as |
| B. | History of development of larger biological units |
| C. | Inheritance of acquired characters |
| D. | Discontinuous genetic variation |
| Answer» D. Discontinuous genetic variation | |
| 184. |
Linkage of hereditary units was discounted by__________________? |
| A. | W. Batson and B.C Pun net |
| B. | T.B. Morgan and G. Mendel |
| C. | W.S. Sutton and K. R. Porter |
| D. | C.B. Bridges and G.H. Shull |
| Answer» B. T.B. Morgan and G. Mendel | |
| 185. |
Law of parallele variation was given by___________________? |
| A. | Wilkins |
| B. | Jacob |
| C. | Vavilov |
| D. | None of the above |
| Answer» D. None of the above | |
| 186. |
Kinds of nitrogen containing bases fond in RNA are__________________? |
| A. | Two |
| B. | Four |
| C. | Six |
| D. | Eight |
| Answer» C. Six | |
| 187. |
Jumping gene was first discovered in______________________? |
| A. | Maize |
| B. | Barley |
| C. | Oenothera |
| D. | Sorghum |
| Answer» B. Barley | |
| 188. |
International institute for Tropical Agriculture is located at______________________? |
| A. | Mexico |
| B. | Nigeria |
| C. | Syria |
| D. | Columbia |
| Answer» C. Syria | |
| 189. |
In wheat, example of durable insect resistance includes resistance to___________________? |
| A. | Green bugs |
| B. | Stem saw fly |
| C. | Hessian fly |
| D. | All the above |
| Answer» E. | |
| 190. |
In wheat, Hessian fly pest is genetically controlled by__________________? |
| A. | Cytoplasm |
| B. | 5D + 5d |
| C. | 2D |
| D. | 1D |
| Answer» C. 2D | |
| 191. |
In the long term storage, germplasm can be stored upto____________________? |
| A. | 200 years |
| B. | 150 years |
| C. | 100 years |
| D. | 1250 years |
| Answer» D. 1250 years | |
| 192. |
In the F2 generation, genotypic and phenotypic ratios are identical in cases of___________________? |
| A. | Mendel lan monohybrids |
| B. | Mendelian dihybrids |
| C. | Incomplete dominance |
| D. | None of the above |
| Answer» E. | |
| 193. |
In sunflower, production of foundation seed requires as isolation___________________? |
| A. | 400 meters |
| B. | 800 meters |
| C. | 200 meters |
| D. | 100 meters |
| Answer» B. 800 meters | |
| 194. |
In rice, brown plant hopper has no preference for___________________? |
| A. | Purple stigma |
| B. | Low aspergine |
| C. | Red pericarp |
| D. | All the above |
| Answer» E. | |
| 195. |
In random mating population gene frequencies remain constant generation after generation in the absence of__________________? |
| A. | Mutation |
| B. | Selection |
| C. | Migration |
| D. | Random drift |
| Answer» D. Random drift | |
| 196. |
In pulses, limiting amino acids include__________________? |
| A. | Lysine |
| B. | Threamine |
| C. | Tryptophan |
| D. | Methionine |
| Answer» D. Methionine | |
| 197. |
In primary trisomic the extra chromosome is__________________? |
| A. | Isochromosome |
| B. | Traits located chromosome |
| C. | Normal chromosome |
| D. | None of the above |
| Answer» D. None of the above | |
| 198. |
In potato food is stored in__________________? |
| A. | Root |
| B. | Shoot |
| C. | Leaves |
| D. | Flowers |
| Answer» C. Leaves | |
| 199. |
In populations genotypic and phenotypic ratios are identical in cases of___________________? |
| A. | Mendel lan monohybrid |
| B. | Mendelian dihybrid |
| C. | Incomplete dominance |
| D. | None of the above |
| Answer» D. None of the above | |
| 200. |
In oat an site-specific cross between Ivena sativa and A busantus_____________________? |
| A. | Incompatible |
| B. | Partially fertile |
| C. | Sterile |
| D. | Fully fertile |
| Answer» E. | |