Question

TO
are viruses? Write general characteristics of viruses? Wri
se?
e no. 74, page no. 75)write the names of four viral disease ​

Answer 1

Answer:

Characteristics of viruses:

1) they are unicellular , that is, they contain no cytoplasm or cellular organelles.

2) they carry out no metabolism on their own and must replicate using the host cell's metabolic mechinery.

3) the vast majority of viruses posses either DNA or RNA but no both.

Some viral diseases:

1) Measles

2) Rubella

3) Smallpox

4) Roseola

5) Flu

6) Common cold

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