Question

Read pp. 396-400, MICRO CHECK page 400: 10. Which part of animal viruses is involved in membrane fusion with a host cell? 13. How do negative-sense single-stranded RNA (-SSRNA) viruses generate mRNA? Read pp. 405-407; MICRO CHECK page 407: 16. How can prions be destroyed?

Answer 1

ans 10. the virus enter the host cell through the attachment protiens present in the caspid if virus or through the glycoprotien embedded n the viral envelope.

ans 13.the negative sense single stranded rna form positive strand rna with the help of rna polymerase .then the positive sense rna acts as aVIRAL MRNA .which is later translated to protiens for production of new viarion materials .

ans 16 prions can be destroyed by denaturation .with suitably high temperature up to 900degree farienhiet or above.

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