MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The experimental design which control fertility variation in one direction is known as____________________? |
| A. | RBD |
| B. | SPD |
| C. | SPD |
| D. | LSD |
| Answer» B. SPD | |
| 2. |
The experimental design which controls fertility variation in two directions in known as_________________? |
| A. | RBD |
| B. | SPD |
| C. | AD |
| D. | LSD |
| Answer» E. | |
| 3. |
The enzymes and pigments associated with photosynthesis are located in ___________________? |
| A. | Leucoplast |
| B. | Plastid |
| C. | Chloroplast |
| D. | Protoplast |
| Answer» C. Chloroplast | |
| 4. |
The digestive vacuole in the animal cell are____________________? |
| A. | Ribosomes |
| B. | Lysosomes |
| C. | Lysozymes |
| D. | Dictysomes |
| Answer» C. Lysozymes | |
| 5. |
The diameter of mitochondria is __________________? |
| A. | 2-4 micron |
| B. | 1-4 micron |
| C. | 0.5-2 micron |
| D. | 40-70 micron |
| Answer» D. 40-70 micron | |
| 6. |
The crossing of a yomozygous tall plant and a homozygous dwarf plant would yield plants in the ratio of_________________? |
| A. | 2 tall: 2 dwarf |
| B. | All homozygous dwarf |
| C. | All the heterozygous tall |
| D. | One homozygous tall, one homozygous dwarf, two heterozygous tall |
| Answer» D. One homozygous tall, one homozygous dwarf, two heterozygous tall | |
| 7. |
The concept of multi line varieties was developed by_________________? |
| A. | Falconer (1960) |
| B. | Goulden (1939) |
| C. | Jensen (1952) |
| D. | Johannsen (1903) |
| Answer» D. Johannsen (1903) | |
| 8. |
The concept of disruptive was given by____________________? |
| A. | Morgan |
| B. | Shull and East |
| C. | Mather |
| D. | None of the above |
| Answer» D. None of the above | |
| 9. |
The concept of diallel selective mating was developed by____________________? |
| A. | brim (1966) |
| B. | Jensen (1952) |
| C. | Jensen (1970) |
| D. | Russel (1978) |
| Answer» D. Russel (1978) | |
| 10. |
The chromosome number of human race is__________________? |
| A. | 48 |
| B. | 41 |
| C. | 44 |
| D. | 46 |
| Answer» E. | |
| 11. |
The chief function of the centro mere concerns___________________? |
| A. | Spindle formation |
| B. | Nucleolus formation |
| C. | Chromosome replication |
| D. | Chromosome movement |
| Answer» E. | |
| 12. |
The change in chromosome number which involves the entire set of genome is known as______________? |
| A. | Anenploidy |
| B. | Euploidy |
| C. | Trisomy |
| D. | all the above |
| Answer» C. Trisomy | |
| 13. |
The cellular structure which always disappears during mitosis is___________________? |
| A. | Plastids |
| B. | Protoplasm |
| C. | Membrane |
| D. | Nuclear and membrane |
| Answer» E. | |
| 14. |
The cell theory was propounded by____________________? |
| A. | Watson and Crick |
| B. | Scheiiden and Schwann |
| C. | Sarwin and Wallace |
| D. | Morgan |
| Answer» C. Sarwin and Wallace | |
| 15. |
The carrier of genetic information is __________________? |
| A. | Protein |
| B. | Ribosome |
| C. | Nucleic acid |
| D. | Carbohydrates |
| Answer» D. Carbohydrates | |
| 16. |
The ATP formed in__________________? |
| A. | Chloroplast |
| B. | Mitochondna |
| C. | Golgi bodies |
| D. | RNA |
| Answer» C. Golgi bodies | |
| 17. |
Rum is distilled from____________________? |
| A. | Unmalted potatoes |
| B. | Fermented fruit juice |
| C. | Unmalted cereals |
| D. | Unrefined products of sugarcane |
| Answer» E. | |
| 18. |
RNA contains_____________________? |
| A. | 3 carbon sugars |
| B. | 4 carbon sugars |
| C. | 5 carbon sugars |
| D. | 6 carbon sugars |
| Answer» D. 6 carbon sugars | |
| 19. |
RNA contains__________________? |
| A. | Thymine |
| B. | Argenine |
| C. | Cystine |
| D. | Uracil |
| Answer» E. | |
| 20. |
Rice flowers have___________________? |
| A. | Six stamens |
| B. | Eight stamens |
| C. | Four stamens |
| D. | None of the above |
| Answer» B. Eight stamens | |
| 21. |
Ribosome’s are the centers of_____________________? |
| A. | Fat synthesis |
| B. | Starch synthesis |
| C. | Protein synthesis |
| D. | Anaerobic respiration |
| Answer» D. Anaerobic respiration | |
| 22. |
Ribosomes are important because they help in __________________? |
| A. | Movement |
| B. | Respiration |
| C. | Protein synthesis |
| D. | Growl |
| Answer» D. Growl | |
| 23. |
Reproduction from an unfertilized egg or reproduction without fertilization may be defined as___________________? |
| A. | Calistoga |
| B. | Chimera |
| C. | Clone |
| D. | Inbreeding |
| Answer» D. Inbreeding | |
| 24. |
RELP’s, RAPD are helpful in________________? |
| A. | Gene sequencing |
| B. | Gene mapping |
| C. | Identify new genes |
| D. | All the above |
| Answer» E. | |
| 25. |
RELP’s, RAPD are helpful in___________________? |
| A. | Gene sequencing |
| B. | Gene mapping |
| C. | Identify new gene |
| D. | All the above |
| Answer» E. | |
| 26. |
Red (RR) is crossed with white (ww). All the (Rw) offsprings are pink this is an indication that the R gene is_________________? |
| A. | Recessive |
| B. | Incomplete dominant |
| C. | Mutant |
| D. | Dominant |
| Answer» C. Mutant | |
| 27. |
Red flower pea plant is crossed with the white flowered pea plant, F1 is red; with flower color is ______________________? |
| A. | Dominant |
| B. | Recessive |
| C. | Non-genetic |
| D. | Unexpressive |
| Answer» C. Non-genetic | |
| 28. |
Reciprocal recurrent selection is effective with___________________? |
| A. | Incomplete |
| B. | Complete dominance |
| C. | Over dominance |
| D. | All the above |
| Answer» E. | |
| 29. |
Reciprocal recurrent selection was proposed by___________________? |
| A. | Hays and limner (1950) |
| B. | Constock et al (1949) |
| C. | Allard (1955) |
| D. | Hull (1935) |
| Answer» C. Allard (1955) | |
| 30. |
Ratio of genotypic covariance to the phenotypic covariance is____________________? |
| A. | Heritability (b.s) |
| B. | Genetic gain |
| C. | Co-heritability |
| D. | Genetic advance |
| Answer» D. Genetic advance | |
| 31. |
Ratio of additive variance to phenotypic variance is called___________________? |
| A. | Heritability (broad sense) |
| B. | Heritability (narrow sense) |
| C. | Co-heritability |
| D. | Genetic gain |
| Answer» C. Co-heritability | |
| 32. |
Pure line theory was developed by_______________? |
| A. | Thoday (1960) |
| B. | Mather (1951) |
| C. | Allard (1957) |
| D. | Johannsen (1903) |
| Answer» E. | |
| 33. |
Protoandry is found in____________________? |
| A. | Wheat |
| B. | Sorghum |
| C. | Maize |
| D. | Barley |
| Answer» D. Barley | |
| 34. |
Protein content in barely is higher than____________________? |
| A. | maize |
| B. | rice |
| C. | wheat |
| D. | None of the above |
| Answer» B. rice | |
| 35. |
Primitive cultivars which are selected and cultivated by farmers for many years are___________________? |
| A. | teriary gene pool |
| B. | Obsolete cultivars |
| C. | Land races |
| D. | Modern cultivars |
| Answer» D. Modern cultivars | |
| 36. |
Presence of slight differences in identical twins support the hypothesis that___________________? |
| A. | Single gene may produce multiple effects |
| B. | Dominance may be incomplete |
| C. | The environment effects the expression of genetic character |
| D. | Genetic trails are influence by many genes |
| Answer» D. Genetic trails are influence by many genes | |
| 37. |
Prescribed germination percentage of foundation seed of groundnut____________________? |
| A. | 70 |
| B. | 20 |
| C. | 90 |
| D. | 95 |
| Answer» B. 20 | |
| 38. |
Prepotency increase with increase in_______________? |
| A. | Hetrozygosity |
| B. | Homozygosity |
| C. | Homogeneity |
| D. | All the above |
| Answer» C. Homogeneity | |
| 39. |
Polytene chromosomes were first observed by___________________? |
| A. | Mendel (1810) |
| B. | Balbiani (1881) |
| C. | Allard (1910) |
| D. | Baranetzky (1910) |
| Answer» C. Allard (1910) | |
| 40. |
Polyploidy is most likely to result from ____________________? |
| A. | Occurrence of crossing over |
| B. | The crossing over between non homologous chromosomes |
| C. | Occurrence of karyokinesis |
| D. | The failure of homologous chromosomes to separate during meiosis |
| Answer» E. | |
| 41. |
Pollen sterility which is controlled by both cytoplasmic and nuclear genes is known as___________________? |
| A. | GMS |
| B. | CMS |
| C. | CGMS |
| D. | all the above |
| Answer» D. all the above | |
| 42. |
Plastids bring about___________________? |
| A. | Secretion |
| B. | Respiration |
| C. | Excretion |
| D. | Conversion of light energy into chemical energy |
| Answer» E. | |
| 43. |
Plasmids are discovered by___________________? |
| A. | Watson & Crick |
| B. | Iscki & Sakai |
| C. | Beadle & Tatum |
| D. | None of the above |
| Answer» C. Beadle & Tatum | |
| 44. |
Plants having monoecious flowers are found in____________________? |
| A. | Maize |
| B. | Caster |
| C. | Colocasia |
| D. | All the above |
| Answer» E. | |
| 45. |
Plants can be made disease resistant by___________________? |
| A. | Colchicines treatment |
| B. | Heat treatment |
| C. | Breeding with the wild variety |
| D. | Hormone spray |
| Answer» D. Hormone spray | |
| 46. |
Plant breeder right are operating in____________________? |
| A. | Geneva |
| B. | 50 meters |
| C. | 200 meters |
| D. | 3 meters |
| Answer» D. 3 meters | |
| 47. |
Pedigree selection is used in____________________? |
| A. | Self pollinated plants |
| B. | Cross pollinated plants |
| C. | Plant difficult to hybridized |
| D. | For crosses at intervener level |
| Answer» C. Plant difficult to hybridized | |
| 48. |
Parthenogenesis is most commonly seen in___________________? |
| A. | Apple |
| B. | Orange |
| C. | Mango |
| D. | Grape |
| Answer» E. | |
| 49. |
Parthenocarpy is the production of____________________? |
| A. | Fruit without pollination |
| B. | Seed without fertilization |
| C. | fruit without fertilization |
| D. | Only seed and no fruit |
| Answer» D. Only seed and no fruit | |
| 50. |
Out breeding leads to reproduction in____________________? |
| A. | Heterozygosity |
| B. | Homozygosity |
| C. | Population mean |
| D. | None of the above |
| Answer» C. Population mean | |