NET, IAS, State-SET (KSET, WBSET, MPSET, etc.), GATE, CUET, Olympiads etc.: Agriculture MCQs (Practice_Test 34 of 56)
Glide to success with Doorsteptutor material for competitive exams : get questions, notes, tests, video lectures and more- for all subjects of your exam.
- Consider the following statements: Soil is a medium for plant growth because
- It provides mechanical suppor and nutrients to the plants.
- It contains beneficial micro-ganisms.
- Plants cannot be grown without soil.
- Of these statements
- 1 alone is correct
- 2 and 3 are correct
- 1 and 3 are correct
- 1,2 and 3 are correct
- The horizons which make up the profile of a forest soil would include
- A, B and C
- A, C and O
- B and O
- A, B, C and O
- The soil layer of maximum leaching is indicated by the symbol
- A1
- A2
- B1
- B2
- When a group of phenotypic ally similar appearing plants is selected and harvested and their seeds ar bulked, the process is known as
- Pedigree breeding
- Mass selection
- Bulk method of breeding
- Pure line selection
- The effect of the genotype of the pollen grain on the phenotype of the seed is termed as
- Apospory
- Pollenia
- End polyploidy
- Xenia
- Clistogamy encourages
- Self-pollination
- Cross pollination
- Apomixes
- Inbreeding depression
- Exchange of genetic material takes place between non sister chromatids of homologous chromosomes during the
- Four stand stage in prophase I
- Two strand stage in prophase I
- Metaphase I stage in meiosis
- Two strand stage in prophase II
- Heterosis over the better parent is called
- relative Heterosis
- Standar Heterosis
- Pseudoheterosis
- Heterobeltiosis
- Which of the following ar the base pairs of a DNA molecule?
- Adenine-thymine
- Cystine-adenine
- Adenine-uracil
- Thymine-adenine
- 1 and 4
- 3 and 4
- 1 and 2
- 2 and 4
- DNA exists as a double helix as a result of hydrogen bonding between
- Sugar molecules
- Phosphate groups
- Nucleohistones
- Nucleosides
- When a plant heterozygous for two given character Tt rr both of them are completely dominant, is self-llinated, the resulting progeny will consist of
- Six phenotypes
- Four phenotypes
- Three phenotypes
- Two phenotypes
- Sterility is most pronounced in the F1 generation following
- Intervarietal hybridization
- Intravarietal hybridization
- Intraspecific hybridization
- Interspecific hybridization
- Which one of the following categories of seeds is the farmer expected to buy a fresh ever time?
- Variety
- Hybrid
- Synthetic
- Composite
- Hybrid seeds can be produced through open pollination with the use of
- Inbreds
- Clones
- Pur lines
- Male sterile lines
- Sterility⟋incompatibility of distant crosses can be overcome to produced hybrids, by
- Pollen culture
- Anther culture
- Explants culture
- Embryo culture
- A three way cross in maize is defined as a cross between a single cross
- An open pollinated variety
- Synthetic
- An inbred line
- Another single cross
- The production of double cross hybrid in maize was first suggested by
- Shull
- East
- Jones
- Hull
- Which one of the following improved crop variety has been evolved through induced mutagenesis?
- Ir variety of rice
- Aruna variety of castor
- UP-2 variety of wheat
- Varuna variety of mustard
- The sugarcane (Saccharum officinarum 2n = 80) variety ar cytologically
- Autopolyploid
- Octoploids
- Segmental polyploidy
- Complex polyploidy
- A time honored sugarcane variety (wonder cane) is
- Co 975
- Co 7508
- Co 6907
- Co 419
- The first sunflower hybrid developed in India is
- MSFH-8
- KBSH-1
- APSH-
- BSH-1
- The “Sonalika” variety of wheat has dwarfing geneses derived from
- rhtl-
- Stu-1
- Norin-1
- Norin-
- Match List I (crops) with List II (varieties) and select the correct answer:
Table Supporting: NET, IAS, State-SET (KSET, WBSET, MPSET, Etc.) , GATE, CUET, Olympiads Etc. : Agriculture MCQs (Practice_Test 34 of 56) List-I List-II - Cotton
- Potato
- rice
- Wheat
- ratna
- Sujata
- Girija
- KufriSinduri
- A
- B
- C
- D
- 4
- 2
- 1
- 3
- 2
- 4
- 1
- 3
- 4
- 2
- 3
- 1
- 2
- 4
- 3
- 1
- Essential elements ar those
- Which could be replaced by other elements with similar properties
- Which ar required in large quantities
- Whose deficiency would prevent the completion of plant՚s life cycle
- Which would promote plant growth
- Molybdenum is required by plants because it is a cofactor for
- Cytochrome oxidize
- Nitrate reeducate
- Nitrite
- Phosphates
- Which of the following pair are correctly matched?
- Match Item 1: Die back disease
- Match Item 2: Of citrus
- Match Item 1: Manganese ‘Water core’
- Match Item 2: In turnip
- Match Item 1: Boron ‘Hear rot’
- Match Item 2: Of sugar beet
- Which is correct match
- 1,2 and 3
- 1 and 3
- 1 and 2
- 2 and 3
- Khair disease of rice can be controlled by spraying
- Copper sulphate
- Manganese sulphate
- Borax
- Zinc sulphate
- Which of the following ar features of CO2 metabolism of succulent plants with CAM?
- Nocturnal stomatal opening
- Night-me transpiration
- Night-me CO. uptake
- Decrease in acidity during the night
- Select the correct answer using the codes given below:
- 2,3 and 4
- 1,2 and 4
- 1,3 and 4
- 1,2 and 3
- Ther is a definite relationship between the extent of accumulation of a particular metal ion and the extent of stomatal opening. The metal ion in question is
- Calcium
- Magnesium
- Potassium
- Sodium
- The photo synthetic pigment which occasioned and blue green algae is
- Chlorophyll
- Carotenoid
- Cytochrome
- Phycobilin