Which of the following statements is correct?
1. Lichens do not grow in polluted areas.
2. Algal component of lichens is called mycobiont
3. Fungal component of lichens is called phycobiont
4. Lichens are not good pollution indicators.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the organisms in column I with habitats in column II.
Column I Column II
(a) Halophiles (i) Hot springs
(b) Thermoacidophiles (ii) Aquatic environment
(c) Methanogens (iii) Guts of ruminants
(d) Cyanobacteria (iv) Salty areas
Select the correct answer from the options given below:
1. (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)
2. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
3. (a)-(iii), (b)-(iv), (c)-(i), (d)-(i)
4. (a)-(ii). (b)-(iv), (c)-(iii), (d)-(i)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMad cow disease in cattle is caused by an organism which has :
1. Inert crystalline
2. Abnormally folded protein
3. Free RNA without protein coat
4. Free DNA without protein coat
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statements is incorrect?
1. Prions consist of abnormally folded proteins
2. Viroids lack a protein cost
3. Viruses are obligate parasites
4. Infective consituent in viruses is the protein coat
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the Column-I with Column-II
|
Column-I |
|
Column-II |
(a) |
Saprophyte |
(i) |
Symbiotic association of fungi with plant roots |
(b) |
Parasite |
(ii) |
Decomposition of dead organic materials |
(c) |
Lichens |
(iii) |
Living on living plants or animals |
(d) |
Mycorrhiza |
(iv) |
Symbiotic association algae and fungi |
Choose the correct answer from the options given below:
(a) (b) (c) (d)
1. (ii) (iii) (iv) (i)
2. (i) (ii) (iii) (iv)
3. (iii) (ii) (i) (iv)
4. (ii) (i) (iii) (iv)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statements is incorrect?
1. Yeasts have filamentous bodies with long thread-like hyphae
2. Morels and truffles are edible delicacies
3. Claviceps is a source of many alkaloids and LSD
4. Conidia are produced exogenously and ascopores endogenously
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe causative agent of mad-cow disease is a:
1. bacterium
2. prion
3. worm
4. virus
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyEvolutionary history of an organism is known as:
1. Phylogeny
2. Ancestry
3. Palaeontology
4. Ontogeny
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat is common about Trypanosoma, Noctiluca, Monocystis and Giardia?
1. These are all unicellular protists
2. They have flagella
3. They produce spores
4. These are all parasites
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe thalloid body of a slime mould (Myxomycetes) is known as :
1. protonema
2. Plasmodium
3. fruiting body
4. mycelium
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology