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Viruses have...

Viruses have

A

DNA enclosed in a protein coat

B

Prokaryotic nucleus

C

Single chromosome

D

Both DNA and RNA

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The correct Answer is:
A
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Read the following statements carefully. (i) Cancer causing viruses have genes called viral oncogenes. (ii) Malignant tumors remain confined to their original location. (iii) Cancer cells do not exhibit contact inhibition. (iv) X-rays and UV rays are not potent carcinogens. (v) Cancer detection is based on biopsy. Which of the above statements are not correct regarding cancer ?

Viruses having RNA genome and shorter lifespan

Viruses having RNA genome evolve faster, because :-

Viruses are haploid having only one genome. But Which group of viruses is diploid and have two genomes?

A; Viruses are not an exception to all theory R: viruses are acellular and have no cell machinery

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

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

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

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

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

AAKASH SERIES-BIOLOGICAL CLASSIFICATION-EXERCISE-III (Previous AIPMT/NEET Question)
  1. Archaebacteria differ from eubacteria in

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  2. Which one of the following is wrong about Chara ?

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  3. Viruses have

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  4. A location with luxuriant growth of lichens on the trees indicates tha...

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  5. The motile bacteria are able to move by

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  6. Five kingdom system of classification sug- gested by R.H. Whittaker is...

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  7. Which of the following fungi contains hallucinogens ?

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  8. Besides paddy fields, cyanobacteria are also found inside vegetative p...

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  9. Which of the following are likely to be present in deep sea water

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  10. Which one of the following organisms is scientifically correctly named...

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  11. In the five-kingdom classification, Chlamydomas and Chlorella have bee...

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  12. Which one of the following does not differ in E . Coli and chlamydomon...

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  13. The cyanobacteria are also referred to as

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  14. Which one of the following is wrong statement ?

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  15. Which statement is wrong for viruses?

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  16. Which one of the following is common to multicellular fungi,filamentou...

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  17. Which one single organism or the pair of organisms is correctly assign...

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  18. Maximum nutritional diversity is found in the group

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  19. In eubacteria, a cellular component that re- sembles eukaryotic cell i...

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  20. Organisms called Methanogens are most abundant in a

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