Chapter 18, Problem 22A

Summary Introduction

Introduction:

The viruses are the small pathogen having nucleic acids and a protein capsule around it. The virus reproduces in the cell of the host and they use the resource of the host cells.

Answer to Problem 22A

Correct Answer:

Option (A) A.

Explanation of Solution

Explanation/justification for the correct answer:

Option (A) A. The capsid is the outer covering of the virus that is made up of protein and encloses the genetic material, in the image the letter A represents the genetic material, which is enclosed within the membrane represented by B. Hence, correct answer is A.

Explanation for incorrect answer:

Option (B) B. B represents capsid. Hence, it is an incorrect answer.

Option (C) C. C represents sheath. Hence, it is not correct.

Option (D) D. D represents tail fiber or spikes. Hence, it is an incorrect answer.