Home
Class 12
BIOLOGY
Viruses have...

Viruses have

A

DNA enclosed in a protein coat

B

Prokaryotic nucleus

C

Single chromosomes

D

Both DNA and RNA

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • DIVERSITY IN LIVING WORLD (PLANT DIVERSITY)

    ALLEN|Exercise EXERCISE -III|136 Videos
  • DIVERSITY IN LIVING WORLD (PLANT DIVERSITY)

    ALLEN|Exercise Assertions and Reason|45 Videos
  • DIVERSITY IN LIVING WORLD (PLANT DIVERSITY)

    ALLEN|Exercise EXERCISE-I|336 Videos
  • DIGESTION AND ABSORPTION

    ALLEN|Exercise S|28 Videos
  • DOMESTICATION OF PLANT (PLANT BREEDING)

    ALLEN|Exercise S|28 Videos

Similar Questions

Explore conceptually related problems

Viruses having RNA genome evolve faster, because :-

Viruses having RNA genome and shorter lifespan

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

Assertion :- RNA viruses having shorter life span and evolve faster. Reason : In RNA rate of mutations is slower than DNA.

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

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

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