AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

VIRUSES AND PRIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of these is NOT a classification of virus?
A
Type of nucleic acid
B
Presence of an envelope
C
host distribution
D
Shape
E
Size
Explanation: 

Detailed explanation-1: -The diversity of nucleic acids found in viruses is startling. Viruses may contain: linear double-stranded (ds) DNAs; circular ds DNAs; linear or circular single-stranded (ss) DNAs; coding (’+ strand’) RNAs; RNAs (’− strand’) whose complements encode viral proteins; and dsRNAs.

Detailed explanation-2: -Viruses are classified by phenotypic characteristics, such as morphology, nucleic acid type, mode of replication, host organisms, and the type of disease they cause.

Detailed explanation-3: -Based on their host, viruses can be classified into three types, namely, animal viruses, plant viruses, and bacteriophages.

There is 1 question to complete.