Gen Combo Ll Biology; Connect W/learnsmart Labs Access Card
Gen Combo Ll Biology; Connect W/learnsmart Labs Access Card
4th Edition
ISBN: 9781259853197
Author: Robert Brooker
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 18, Problem 1TY
Summary Introduction

Introduction: Capsid is a covering made up of small protein subunits called capsomeres. These capsomeres are arranged in a specific pattern over the virus. It provides protection to the virus.

Expert Solution & Answer
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Answer to Problem 1TY

Correct answer: Capsid is the protein coat that surrounds the genetic material of the virus. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Option c. is given as “capsid”.

The capsid is the protein structure arranged over the virus. It provides protection to the genetic material of the virus. Hence, the correct answer is option c.

Reasons for the incorrect answer:

Option a. is given as, “host”.

It is the organism which is invaded by a virus or a bacterium. For bacteriophage, the host organism is bacteria. Hence, option a. is incorrect.

Option b. is given as, “prion”.

A prion is a form of infectious protein molecule. They do not have nucleic acid as their genetic material. Hence, the option b. is incorrect.

Option d. is given as, “viroid”.

A viroid is a small single-stranded infectious nucleic acid and does not possess any protein coat. Hence, option d. is incorrect.

Option e. is given as, “capsule”.

The capsule is the proteinaceous covering present on the surface of bacteria and not viruses. Hence, the option e. is incorrect.

Hence, the options a., b., d., and e. are incorrect.

Conclusion

Sometimes, the capsid present in viruses can also have an envelope. The envelope contains proteins for penetration and entry into the host. The capsid is made up of capsomeres and it protects the genetic material of the virus.

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What Is A Virus ? ; Author: Peekaboo Kidz;https://www.youtube.com/watch?v=YS7vsBgWszI;License: Standard YouTube License, CC-BY