AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

VIRUSES AND PRIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is a capsid?
A
viral reproduction
B
type of nucleic acid
C
prokaryotic cell
D
protein coat that protects a virus
Explanation: 

Detailed explanation-1: -A capsid is the protein shell of a virus, enclosing its genetic material. It consists of several oligomeric (repeating) structural subunits made of protein called protomers. The observable 3-dimensional morphological subunits, which may or may not correspond to individual proteins, are called capsomeres.

Detailed explanation-2: -Capsids are protein shells that surround and protect the viral genome. Capsid proteins often self-assemble into icosahedral structures with a quasi-equivalent arrangement of individual subunits.

Detailed explanation-3: -Viruses have a protein coat called capsid, that encloses their genetic material.

Detailed explanation-4: -Explanation: The protective coat or capsid is made up of protein molecules which surround the nucleic acid molecule carrying a number of genes including several for the replication of phage.

Detailed explanation-5: -Viral capsids are nanometre-sized containers that possess complex mechanical properties and whose main function is to encapsidate the viral genome in one host, to transport it and to subsequently release it inside another host cell.

There is 1 question to complete.