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Viruses have...

Viruses have

A

Both DNA and RNA

B

DNA enclosed in a protein coat

C

Prokaryotic nucleus

D

Single chromosome

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The correct Answer is:
A, B
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Viruses are haploid having only one genome. Which group of viruses is diploid and have two genomes ?

[A] : Viruses are exception to cell theory . [R] : Viruses don't have a defined nucleus and cytoplasm .

[A] : Outside the host , viruses do not survive . [R] : Viruses are obligate aerobic .

[A] : Viruses are obligate parasites . [R] : Viruses can not multiply outside the host .

[A] : Viruses are not included in any kingdom of classification . [R] : Viruses are not cells as they lack cytoplasm .

[A] : Viruses are not considered organisms . [R] : Viruses lack cytoplasm and metabolic machinery .

Go through the following statements: (i) Viruses are obligate parasites (ii) Viruses that infect plants in general have single stranded DNA (iii) Bacteriophages are double stranded DNA viruses. (iv) The coat is made of protein subunits called nucleomeres. Find the correct statements

Viruses are living because

Viruses are not affected by antibiotics because

Viruses are non-cellular organisms but replicate themselves once they infect the host cell. To which of the following kingdom do viruses belong to ?

TRUEMAN BIOLOGY-MOLECULAR BASIS OF INHERITANCE-MCQs
  1. An analysis of chromosomal DNA using the southern hybridization techni...

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  2. Transformation was discovered by

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  3. Viruses have

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  4. In sea urchin DNA, which is double stranded, 17% of the bases were sho...

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  5. Gene regulation governing lactose operon of E. coli that involves the ...

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  6. Which of the following is not application of RNA :

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  7. Identify the correct order of organisation of genetic material from...

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  8. Balbiani rings are sites of

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  9. Which of the following statements is wrong for viroids

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  10. Which one of the following is the starter codon ?

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  11. Which of the following is required as inducer(s) for the expression of...

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  12. Which of the following is not required for any of the techniques of DN...

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  13. A non-proteinaceous enzyme is

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  14. Taylor conducted the experiments to provide semiconcervative mode of c...

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  15. the mechanism that causes a gene to move from one linkage group to a...

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  16. The equivalent of a structural gene is

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  17. Which of the following r-RNAs acts as structural RNA as well as ribozm...

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  18. In Hardy-Weinberg equation , the frequency of heterozygous individual ...

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  19. A molecule that can act as a genetic material must fulfill the traits ...

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  20. DNA-dependent RNA polymerase catalyzes transcription on one strand of ...

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