NET, IAS, State-SET (KSET, WBSET, MPSET, etc.), GATE, CUET, Olympiads etc.: Botany MCQs (Practice_Test 44 of 104)
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- Assertion (A) : Exocrine producing desert plants are spaced distantly.
- Reason (R) : Allelopathy causes growth inhabitation.
- Both A and R are true and R is the correct explanation of A
- Both A and R ate true but R is not a correct explanation of A
- A is true but R is false
- A is false but R is true
- Assertion (A) : The vesicular arbuscular mycorrhizae are helpful in volatilization and uptake of phosphate.
- Reason (R) : Phosphate in soil exists only in insoluble form.
- Both A and R are true and R is the correct explanation of A
- Both A and R ate true but R is not a correct explanation of A
- A is true but R is false
- A is false but R is true
- Assertion (A) : Lantana cemara is an exotic plant introduced in India.
- Reason (R) : Introduced plants are always harmful in a new area.
- Both A and R are true and R is the correct explanation of A
- Both A and R ate true but R is not a correct explanation of A
- A is true but R is false
- A is false but R is true
- The Precambrian red rock indicates the
- Presence of the free oxygen
- Absence of free oxygen
- Presence of hydrogen
- Presence of water
- The following four scientists are associated with the work on organic evolution:
- Gregor Mendel
- Charles R. Darwin
- G. G. Simpson
- J. B. S. Haldane
- The chronological order of their appearance in the scientific field is
- 2,1, 3,4
- 2,1, 4,3
- 3,4, 1,2
- 4,1, 2,3
- The principles which bind all living systems together are
- Laws of thermodynamics
- Laws of heredity
- Mechanisms of photosynthesis
- Modes of germination
- The first intermediate electron carrier molecule formed during the origin of Life was
- Chlorophyll
- Poiphyrin
- Phytochrome
- Protochiorphyll
- In which type of stole, does phloem surround the xylem both externally and internally?
- Amphiphloic siphonostele
- Ectophtoic siphonostele
- Haplostele
- Actinostle
- Which one of the following is not concerned with the permanent closure of stomata present on photosynthesizing plant organs in some desert plants?
- The closure is caused by additional thickening and customization of the guard cell walls
- Blocking of the sunken stomata from the exterior by the resinous masses
- Increase of turgor pressure in the guard cells of sunken stomata
- Blocking of the stomata by wax layer
- The nomenclatural type of a specimen selected by the author as substitute of a lost material on which the name of the taxon is based is called
- Syntype
- Neotype
- Lectotype
- Paratype
- The Amaryllidaceous is distinguished from liliaceous on the basis of
- Regular timorous flower with superior ovary
- Umbellate inflorescence, regular timorous flower with superior ovary
- Umbellate inflorescence, regular flower and inferior ovary
- Umbellate inflorescence and inferior ovary
- Match List I with List II and select the correct answer using the codes given below the lists:
Table Supporting: NET, IAS, State-SET (KSET, WBSET, MPSET, Etc.) , GATE, CUET, Olympiads Etc. : Botany MCQs (Practice_Test 44 of 104) List-I List-II - Asclepiadaceac
- Orchidaceae
- Solanaceae
- Umbelliferae
- Obliquely placed gynoecium՚s
- Stamina corona
- Polonium
- Inferior ovary
- A
- B
- C
- D
- 2
- 1
- 4
- 3
- 2
- 3
- 1
- 4
- 1
- 4
- 3
- 2
- 3
- 2
- 4
- 1
- Match the taxa in List I with their correct endings in List II and select the correct answer using the codes given below the lists:
Table Supporting: NET, IAS, State-SET (KSET, WBSET, MPSET, Etc.) , GATE, CUET, Olympiads Etc. : Botany MCQs (Practice_Test 44 of 104) List-I List-II - Order
- Tribe
- Sub-order
- Sub-family
- -ineae
- -oideae
- -ales
- -eae
- A
- B
- C
- D
- 3
- 4
- 1
- 2
- 3
- 2
- 4
- 1
- 2
- 1
- 3
- 4
- 4
- 2
- 3
- 1
- Taxonomic studies have been divided into four successive phase:
- Exploratory phase
- Consolidation phase
- Biosystematics phase
- Encyclopedic phase ‘Omega’ Taxonomy, accordint to Turrill, is made of
- 1 and 2
- 1 and 3
- 2 and 4
- 3 and 4
- Which one of the following coniferous members is a ‘living fossill’
- Cedrus
- Pinus
- Picea
- Metasequoia