1.
In SARS-CoV-2, the genomic structure is organized in a +ssRNA of approximately 30 kb in length — the largest known RNA viruses — and with a 5′-cap structure and 3′-poly-A tail. It has round or elliptic and often pleomorphic form, and a diameter of approximately: 0
A:
1- 5 nm
B:
60–140 nm
C:
5-10 μm
D:
100-500 A
The answer is:
B
