Viruses and Their Replication - Attachment and Entry of Bacteriophage T4
9 important questions on Viruses and Their Replication - Attachment and Entry of Bacteriophage T4
What determines the host range of a virus to a major extent?
What are examples of receptors that viruses can bind to?
- Proteins
- Carbohydrates
- Glycoproteins
- Lipids
- Lipoproteins
- Lipocomplex
What receptor does bacteriophage T4 bind to?
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How does the viral genome of a bacteriophage T4 enter the host cell?
What are weapons of bacteria and archaea agains viral attack?
- Restriction modification system
- Immune defense
- CRISPR
What is the restriction modification system?
The restriction endonuclease enzyme cleaves double stranded DNA. The methylase adds a methyl group to a molecule. In restriction-modification systems of bacteria a methyl group is added to DNA at a specific site to protect the site from restriction endonuclease cleavage.
What is immune defense is bacteria?
What is the viral defense against host attack?
Viral counter mechanisms to evade bacterial restriction systems. Two types are:
- Chemical modification of viral DNA (methylation or glucosylation)
- Production of proteins that inhibit host cell restriction system
What is the viral defense of a T4?
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