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. |
Concept of path coefficient analysis was given by_________________? |
| A. | Mather (1949) |
| B. | Wright (1921) |
| C. | Fisher (1918) |
| D. | Smith (1936) |
| Answer» B. Wright (1921) | |
| 2. |
Concept of ideotype___________________? |
| A. | Model plant type |
| B. | Good plant model |
| C. | Ideal plant type |
| D. | All the above |
| Answer» E. | |
| 3. |
Concept of ideotype was coined by__________________? |
| A. | Oat |
| B. | Sorghum |
| C. | Wheat |
| D. | Rice |
| Answer» D. Rice | |
| 4. |
Concept of generation means analysis was developed by_______________________? |
| A. | Hayman (1958) |
| B. | Griffing (1965) |
| C. | Jink (1950) |
| D. | Kempthome (1957) |
| Answer» B. Griffing (1965) | |
| 5. |
Concept of gene for gene hypothesis was developed in____________________? |
| A. | Linseed |
| B. | Oat |
| C. | Gram |
| D. | Tomato |
| Answer» B. Oat | |
| 6. |
Concept of disruptive selection was first developed by__________________? |
| A. | Grafius (1965) |
| B. | Mather (9153) |
| C. | Thoday (1960) |
| D. | Falconer (1960) |
| Answer» E. | |
| 7. |
Concept of combining ability as measure of gene action was first proposed by___________________? |
| A. | Sprague and Tatum (1942) |
| B. | Cavalli (1952) |
| C. | Mather (1956) |
| D. | Wright (1951) |
| Answer» B. Cavalli (1952) | |
| 8. |
Concept of biparental mating was developed by__________________? |
| A. | Perkins (1968) |
| B. | Jinks and Jones (1958) |
| C. | Hayman (1958) |
| D. | Comstock and Robinson (1948) |
| Answer» E. | |
| 9. |
Common and easily available source of energy does not contain RNA__________________? |
| A. | DNA |
| B. | RNA |
| C. | ATP |
| D. | DNA/RNA |
| Answer» D. DNA/RNA | |
| 10. |
Colchicum () is extracted from__________________? |
| A. | Seed |
| B. | Bulb |
| C. | Fruit |
| D. | Flower |
| Answer» C. Fruit | |
| 11. |
Citification is not required for_____________________? |
| A. | Nucleus seed |
| B. | Breeder seed |
| C. | Foundation seed |
| D. | Certified seed |
| Answer» C. Foundation seed | |
| 12. |
Chemically DNA differs from RNA by __________________? |
| A. | Thymine present in DNA and Uralic in RNA |
| B. | Deoxyribose and thymine is present in DNA and ribose and Ural in RNA |
| C. | Ribose and thymine in DNA and deoxyribose and uracil in RNA |
| D. | Deoxyribose in DNA and ribose in RNA |
| Answer» C. Ribose and thymine in DNA and deoxyribose and uracil in RNA | |
| 13. |
Cells intercommunicates with neighbouring cells by_________________? |
| A. | Plasmedesmata |
| B. | Plasmedesmata |
| C. | Trachieds |
| D. | Nessels |
| Answer» B. Plasmedesmata | |
| 14. |
Carbohydrates synthesis is carried out by ___________________? |
| A. | Ribosomes |
| B. | Golgi bodies |
| C. | Mitochondria |
| D. | Plastid |
| Answer» E. | |
| 15. |
capsicum is a rich source of___________________? |
| A. | Vitamin A |
| B. | Vitamin C |
| C. | Vitamin D |
| D. | None of the above |
| Answer» B. Vitamin C | |
| 16. |
Breeder seed is the progeny of__________________? |
| A. | Cenified seed |
| B. | Nucleus seed |
| C. | Foundation |
| D. | Registered seed |
| Answer» C. Foundation | |
| 17. |
Blackeselee reported the first case of monoploid in__________________? |
| A. | Datura |
| B. | Rye |
| C. | Brassica |
| D. | Oat |
| Answer» B. Rye | |
| 18. |
Biometrics for the study of quantitative genetics was provided by ___________________? |
| A. | Fisher |
| B. | Falconer |
| C. | Mather |
| D. | Hayman |
| Answer» B. Falconer | |
| 19. |
Bacteria, single celled animals and plants are grouped to gather as_______________________? |
| A. | Protozoa |
| B. | Prototypal |
| C. | Protista |
| D. | Prokaryotes |
| Answer» D. Prokaryotes | |
| 20. |
As a result of linkage and crossingover _____________________? |
| A. | Chromatids become chromosomes |
| B. | Nuclear division come to close |
| C. | Chromosomes become half in number |
| D. | Exchange of chromosomal material |
| Answer» E. | |
| 21. |
As a general rule interbreeding is possible between______________________? |
| A. | Any two members of a Genus |
| B. | Any two members of a Species |
| C. | Any two members of a Family |
| D. | Any two members of an order |
| Answer» C. Any two members of a Family | |
| 22. |
Artificial vegetative reproduction is done by_________________? |
| A. | Grafting |
| B. | Budding |
| C. | Layering |
| D. | All the above |
| Answer» E. | |
| 23. |
Argemone mexicana is an objectional wed of__________________? |
| A. | Oat |
| B. | Rapseed/mustard |
| C. | Tomato |
| D. | Barley |
| Answer» C. Tomato | |
| 24. |
Apheliotropic gene is one which___________________? |
| A. | Affects more than five characters |
| B. | Affects more than ten characters |
| C. | Affects only one character |
| D. | Affects more than one character |
| Answer» E. | |
| 25. |
Anthesis starts in Allium cepa at___________________? |
| A. | 7.00 am |
| B. | 10.00 am |
| C. | 3.00 pm |
| D. | 5.00 pm |
| Answer» B. 10.00 am | |
| 26. |
Anthesis starts in wheat at__________________? |
| A. | 10.00 am |
| B. | 5.20 pm |
| C. | 1.15 pm |
| D. | 7.00 am |
| Answer» D. 7.00 am | |
| 27. |
Analysis of covanance permits estimation of_____________________? |
| A. | Environmental covanance |
| B. | Phenotypic covanance |
| C. | Genotypic convanance |
| D. | All the above |
| Answer» E. | |
| 28. |
An organism or cell having a chromosome number that is higher than the exact nultiple of the basic number is known as__________________? |
| A. | Hypoploid |
| B. | Hyperploid |
| C. | Allopolyploid |
| D. | Autopolyploid |
| Answer» C. Allopolyploid | |
| 29. |
An individual with two identical members of a part of geneue factors is called__________________? |
| A. | Hybrid |
| B. | Homozygous |
| C. | Heterozygous |
| D. | Dominant |
| Answer» C. Heterozygous | |
| 30. |
An individual lacking only one chromosome from the diploid set is referred as_________________? |
| A. | Nullisomic |
| B. | Monosomic |
| C. | Trisomic |
| D. | Tetrasomic |
| Answer» C. Trisomic | |
| 31. |
An exce4ption of Mendel’s law is______________________? |
| A. | Dominance |
| B. | Liukage |
| C. | Independent assortment |
| D. | Purity of gametes |
| Answer» C. Independent assortment | |
| 32. |
An auxotroph is_________________? |
| A. | A mutant organism which has lost its ability to synthesize one or more essential nutrients |
| B. | A plan that is able to synthesize its own carbohydrates |
| C. | An organism that depends on other organism for meting its nutrient requirements |
| D. | non of these |
| Answer» B. A plan that is able to synthesize its own carbohydrates | |
| 33. |
Amphimixis refers to_______________________? |
| A. | Asexual reproduction |
| B. | Sexual reproduction |
| C. | Apomixes |
| D. | None of the above |
| Answer» C. Apomixes | |
| 34. |
Amount of DNA is the diploid cells____________________? |
| A. | Varies with the age |
| B. | Coustant for all organismes |
| C. | Constant for particular organism |
| D. | None of the above |
| Answer» C. Constant for particular organism | |
| 35. |
Among the following the test cross is_________________? |
| A. | TTxTT |
| B. | TTxTt |
| C. | TtxTt |
| D. | Ttxtt |
| Answer» E. | |
| 36. |
Allogamy leads to___________________? |
| A. | Homozy gosity |
| B. | Heterozy gosity |
| C. | Segregation |
| D. | none of the above |
| Answer» C. Segregation | |
| 37. |
Allogamy is the common form of________________________? |
| A. | Inbreeding |
| B. | Out breeding |
| C. | Syn breeding |
| D. | All the above |
| Answer» C. Syn breeding | |
| 38. |
Allogamy is promoted by____________________? |
| A. | Male sterility |
| B. | Dichiny |
| C. | Herkogamy |
| D. | All the above |
| Answer» E. | |
| 39. |
All the individuals derived by vegetative propagation from a single individual is known as___________________? |
| A. | Affects more than five characters |
| B. | Affects more than ten characters |
| C. | Affects only one character |
| D. | Affects more than one character |
| Answer» B. Affects more than ten characters | |
| 40. |
All organism or cell having a chromosome number that is not an exact multiple of the monoploid or basic number is known as___________________? |
| A. | Allopolyploid |
| B. | Autopolyploid |
| C. | Aneuploid |
| D. | Euploid |
| Answer» D. Euploid | |
| 41. |
After self pollination of red flowered plants out of 40 plants of progeny were white flowered. this indicates that the plants are__________________? |
| A. | Heterogeneous |
| B. | Heterozygous |
| C. | Homogenous |
| D. | Homozygous |
| Answer» C. Homogenous | |
| 42. |
Absence of chlorophyll in a plant is known as__________________? |
| A. | Acrodsome |
| B. | Albinism |
| C. | A gouri |
| D. | None of the above |
| Answer» B. Albinism | |
| 43. |
Abnormal cell with random number of chromosomes is__________________? |
| A. | Annapolis |
| B. | Polyploidy |
| C. | Heterckaryotic |
| D. | Haploid |
| Answer» B. Polyploidy | |
| 44. |
A useful process for determining whether an individual is homozygous or heterozygous is_____________________? |
| A. | Cross breeding |
| B. | Back crossing |
| C. | Self fertilization |
| D. | Inbreeding |
| Answer» C. Self fertilization | |
| 45. |
A transonic individual has chromosome number____________________? |
| A. | 2 n+1 |
| B. | 2 n+2 |
| C. | 2 n+3 |
| D. | 2 n-1 |
| Answer» B. 2 n+2 | |
| 46. |
A species or type of a plant derived from doubling the chromosome of the F1 hybrid of two known species is known as__________________? |
| A. | Autodiploid |
| B. | Hexaploid |
| C. | Autopolyploid |
| D. | Amphidiploid |
| Answer» E. | |
| 47. |
A rearrangement of a group of genes in a chromosome in such a way that their order in the chromosomes is reversed is known as _____________________? |
| A. | Inversion |
| B. | Conversion |
| C. | Recessive gene |
| D. | Realignment |
| Answer» D. Realignment | |
| 48. |
A polyploidy species with genomes derived from the same original species is an_________________? |
| A. | Allopolyploidy |
| B. | Amphidiploids |
| C. | Annapolis |
| D. | Autopolyploid |
| Answer» E. | |
| 49. |
A place or area where maximum variability of crop plants is observed__________________? |
| A. | Genetic diversity |
| B. | Micro centers |
| C. | Gene sanctuaries |
| D. | Centers of diversity |
| Answer» E. | |
| 50. |
A nullisomic individual is represented by________________? |
| A. | 2n-1 |
| B. | 2n+1 |
| C. | 2n-2 |
| D. | 2n+2 |
| Answer» D. 2n+2 | |