Mark the correct-a)interferons arenot cytokinine barrierb)MALT not loc...
C is correct and it's clear about the statement c and if you have doubt in other options you can refer ncert
Mark the correct-a)interferons arenot cytokinine barrierb)MALT not loc...
Explanation:
Interferons are a group of signaling proteins produced and released by host cells in response to the presence of several pathogens, such as viruses, bacteria, parasites, and tumor cells. They play a crucial role in the innate immune response to combat infections.
Interferons are not cytokine barrier:
- Interferons are not part of the cytokine barrier. Cytokines are a broad category of small proteins important in cell signaling. Interferons are specifically involved in the antiviral response by interfering with viral replication within host cells.
MALT not located in urogenital tract:
- Mucosa-associated lymphoid tissue (MALT) is a component of the immune system that protects mucosal surfaces in various parts of the body, such as the respiratory, gastrointestinal, and ocular tracts. It is not primarily located in the urogenital tract.
Reverse transcription occurs inside the nucleus of the host:
- Reverse transcription is a process where the genetic information of RNA viruses is converted into DNA. This process occurs inside the nucleus of the host cell, where the viral RNA is reverse-transcribed into DNA by the viral enzyme reverse transcriptase.
Alpha interferon is not based on passive immunity:
- Alpha interferon is a type of interferon that is produced by various cells in response to viral infections. It is not based on passive immunity, which involves the transfer of pre-formed antibodies to provide immediate protection against a specific pathogen. Alpha interferon activates the immune response to help the body fight off viral infections actively.
In conclusion, the correct statement is that reverse transcription occurs inside the nucleus of the host.
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