A fungus used extensively in biochemical and genetic work is:
1. | Neurospora | 2. | Trichoderma |
3. | Paecilomyces | 4. | Streptomyces |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyContagium vivum fluidum was proposed by
1. | D. J. Ivanowsky | 2. | M. W. Beijerinek |
3. | Stanley | 4. | Robert Hooke |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn general, the viruses that infect plants have:
1. | Single stranded RNA | 2. | Single stranded DNA |
3. | Double stranded RNA | 4. | Double stranded DNA |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyViruses are:
1. Obligate intracellular parasites
2. Obligate extracellular parasites
3. Facultative parasites
4. Free living, outside a living cell
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyBacteriophages are:
1. Bacteria infecting ss RNA viruses
2. Bacteria infecting ds RNA viruses
3. Viruses that infect bacteria and generally have ds DNA
4. Viruses that infect bacteria and generally have ds RNA
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statements is wrong for viroids?
1. Their RNA is of high molecular weight
2. They lack a protein coat
3. They are smaller than viruses
4. They cause infections
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyViroids differ from viruses in having
1. DNA molecules with protein coat
2. DNA molecules without protein coat
3. RNA molecules with protein coat
4. RNA molecules without protein coat
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPotato Spindle Tuber Disease is caused by a pathogen that is:
1. | A nucleocapsid |
2. | A low molecular weight free RNA |
3. | An abnormally folded protein |
4. | A protozoan |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPrion is:
1. A nucleocapsid
2. A low molecular weight free RNA
3. An abnormally folded protein
4. A protozoan
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe disease caused by prions in humans is known as:
1. Bovine spongiform encephalopathy
2. Scrapie
3. CJD [Creutzfeldt Jakob Disease]
4. Infectious mononucleosis
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology