Viroids

Q. Viroids differ from viruses in having:

1. DNA molecules with protein coat
2. DNA molecules without protein coat
3. RNA molecules with protein coat
4. RNA molecules without protein coat

Q.

Viroids have

1. single stranded DNA not enclosed by protein coat

2. single stranded RNA not enclosed by protein coat

3. double stranded RNA enclosed by protein coat

4. double stranded DNA enclosed by protein coat

Q. Viroids

1. Are devoid of protein coat
2. Are larger than viruses
3. Cause Kuru disease in humans
4. Do not cause any infection

Q. Potato spindle tuber disease is caused by an organism which has:

1. RNA with protein coat
2. Low molecular weight free RNA
3. Abnormally folded protein

4. Crystalline structure

Q.

How are viroids different from viruses?