1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Tobacco mosaic virus is a tubular filament of size
A
300 $$ \times $$ 10 nm
B
300 $$ \times $$ 5 nm
C
300 $$ \times $$ 20 nm
D
700 $$ \times $$ 30 nm
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Which one of the following statements about viruses is correct?
A
Viruses possess their own metabolic system.
B
All viruses contain both RNA and DNA .
C
Viruses are obligate parasites.
D
Nucleic acid of viruses is known as capsid.
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Viruses are no more ''alive'' than isolated chromosomes because
A
They require both RNA and DNA
B
they both need food molecules
C
they both require oxygen for respiration
D
both require the environment of a cell to replicate.
4
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
In which kingdom would you classify the archaea and nitrogen-fixing organisms, if the five-kingdom system of classification is used?
A
Plantae
B
Fungi
C
Protista
D
Monera
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