Question

Hlw all!!

What is Bacteriophage?

Explain the penetration process in Bacteriophages

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Answer 1

a virus which parasitizes a bacterium by infecting it and reproducing inside it. Bacteriophages are much used in genetic research.

Following adsorption, the phage injects its DNA into the bacterial cell. The tail sheath contracts and the core is driven through the wall to the membrane. This process is called penetration and it may be both mechanical and enzymatic

Answer 2

Hi mate

Question:

What is Bacteriophage?

Answer:

Bacteriophages:

Viruses infection bacteria are called Bacteriophages. It literally means 'eaters of bacteria' ( Gr: Phagein = to eat ). Pages are abundant in soil, sewage water, fruits, vegetables, and milk.

Question:

Explain the penetration process in Bacteriophage

Answer:

Penetration:

The penetration process involves mechanical and enzymatic enzymatic digestion of cell wall of the host. At the recognition site phage digests certain cell wall structure by viral enzymes (lysosome). After pinning the tail shealth contracts (using ATP) and appears shorter and thicker. After contraction the base plate and enlarges through which DNA is injected into the cell wall without using metabolic energy. The steps involving injection of DNA particle alone into the bacterial cell is called Transfection. The empty protein coat leaving outside the cell is known as 'ghost'.

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