PATHOLOGY

PATHOLOGY MCQ

GENETICS AND DISEASE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A virus can be classified by its type of
A
mitochondria
B
chromosomes
C
nucleic acid
D
carbohydrates
Explanation: 

Detailed explanation-1: -Baltimore classification (first defined in 1971) is a classification system that places viruses into one of seven groups depending on a combination of their nucleic acid (DNA or RNA), strandedness (single-stranded or double-stranded), sense, and method of replication.

Detailed explanation-2: -Viruses are small obligate intracellular parasites, which by definition contain either a RNA or DNA genome surrounded by a protective, virus-coded protein coat. Viruses may be viewed as mobile genetic elements, most probably of cellular origin and characterized by a long co-evolution of virus and host.

Detailed explanation-3: -Viruses contain nucleic acid as RNA or DNA. These molecules possess all the genetic information of the virus. Research involving the use of viral nucleic acid products, are becoming increasing popular.

Detailed explanation-4: -Class I: Double stranded DNA (dsDNA) viruses. Class II: Single stranded DNA (ssDNA) viruses. Class III: Double stranded RNA (dsRNA) viruses. Class IV: Single stranded RNA (ssRNA) viruses. Class V: Single stranded RNA (ssRNA) viruses. More items

There is 1 question to complete.