Question

Which structure is labeled X in the diagram below?

A.nucleic acid
B.lipid envelope
C.protein tail
D.capsid protein

Answer 1

The correct answer is option D. Capsid protein

This protein is found in the virus. It is the protein shell of virus. Capsid protein is made of protomers which makes oligometric structural subunits.

It has several functions:

It protects the digestion off nucleic acids by the host enzymes.

It helps in the attachment and penetration of the virion to the host (cell membrane)

Answer 2

Answer;

D. Capsid protein

Step-by-step explanation;

-Capsid refers to the protein shell of a virus. Capsid is made up of protomers which makes oligometric structural subunits.

The capsid play various roles which includes;

• Protecting the nucleic acid digestion by host enzymes
• It helps in the attachment of the virion to the host cell
• It also provides proteins that enable the penetration of the virion to the host cell membrane.