NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

KINGDOM MONERA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Influenza virus has
A
DNA
B
RNA
C
Both (a) and (b)
D
Only proteins and no nucleic acids
Explanation: 

Detailed explanation-1: -All influenza viruses consist of single-stranded RNA as opposed to dual-stranded DNA. The RNA genes of influenza viruses are made up of chains of nucleotides that are bonded together and coded by the letters A, C, G and U, which stand for adenine, cytosine, guanine, and uracil, respectively.

Detailed explanation-2: -Influenza viruses contain a single-stranded negative-sense RNA genome that consists of eight segments in influenza A and B viruses and seven segments in influenza C viruses6.

Detailed explanation-3: -The influenza virus is a negative-sense, single-stranded RNA (ssRNA) virus that is segmented into eight (Subtypes A, B) or seven (Subtype C) separate strands.

Detailed explanation-4: -The H1N1 influenza virus is an orthomyxovirus and produces virions that are 80 to 120 nm in diameter, with an RNA genome size of approximately 13.5 kb. The swine influenza genome has 8 different regions which are segmented and encode 11 different proteins: Envelope proteins hemagglutinin (HA) and neuraminidase (NA)

Detailed explanation-5: -Coronaviruses (CoVs), enveloped positive-sense RNA viruses, are characterized by club-like spikes that project from their surface, an unusually large RNA genome, and a unique replication strategy.

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