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1. Size - T4 is among the largest phages; it is approximately 200 nm long and 80-100 nm wide. Other phages are smaller. Most phages range in size from 24-200 nm in length.
2. Head or Capsid - All phages contain a head structure which can vary in size and shape. Some are icosahedral (20 sides) others are filamentous. The head or capsid is composed of many copies of one or more different proteins. Inside the head is found the nucleic acid. The head acts as the protective covering for the nucleic acid.
3. Tail - Many but not all phages have tails attached to the phage head. The tail is a hollow tube through which the nucleic acid passes during infection. The size of the tail can vary and some phages do not even have a tail structure. In the more complex phages like T4 the tail is surrounded by a contractile sheath which contracts during infection of the bacterium. At the end of the tail the more complex phages like T4 have a base plate and one or more tail fibers attached to it. The base plate and tail fibers are involved in the binding of the phage to the bacterial cell. Not all phages have base plates and tail fibers. In these instances other structures are involved in binding of the phage particle to the bacterium.
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoThe parts of bacteriophage are the head, collar, core, and sheath. Other parts of bacteriophage are the base plate and the tail fibers.
Wiki User
∙ 13y agoIt is composed of DNA and RNA core and a protein coat.
Wiki User
∙ 8y agoNucleic acid, such a nap is located inside of a bacteriophage. There is a protein coat but that i
Wiki User
∙ 11y agoNucleic acid and protein.
Wiki User
∙ 9y agoDNA not protein
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What is a prophage-?
Genetic material of a bacteriophage , joined into the genome of a bacterium and able to produce phages if activated
The way that genetic material of a bacteriophage enters a bacterium is most like the way that?
a drug is injected with a hypodermic needle. virus = bacteriophage
Describe the contributions of hershey and chase to the understanding that DNA is the genetic material?
Hershey and Chase radioactively labelled T2 bacteriophage with P (DNA) and S (protein) to determine if protein or DNA carried the genetic material. They let the bacteriophage infect E.coli. The radioactive material found in the host E.coli contained the radioactive P (found in DNA) as the bacteriophage had multiplied inside the cell, but the radioactive S was not found inside the cell. Therefore DNA is the hereditary molecule resorce - some other guy off the internet
Who concluded that the genetis material of a bacteriophage is DNA?
The scientists Alfred Hershey and Martha Chase conducted a series of experiments at the Carnegie Institute of Washington in 1952, and concluded that the genetic material of a bacteriophage was DNA.
A bacteriophage typically attaches to the bacterium and then?
It's genetic material and some enzymes sometimes which hijack the bacteria into making more viruses.
What is a prophage-?
Genetic material of a bacteriophage , joined into the genome of a bacterium and able to produce phages if activated
Hershey and chase concluded that the genetic material of the bacteriophage was?
dna(:
The way that genetic material of a bacteriophage enters a bacterium is most like the way that?
a drug is injected with a hypodermic needle. virus = bacteriophage
What is the tail of a bacteriophage specialized for?
Landing on a bacterium and inserting the viruses genetic material into the bacterium.
What result did Hershey and chase observe?
they concluded that the genetic material of the bacteriophage was DNA, not protein
Is a T4 bacteriophage virus living or non living?
Bacteriophage viruses are nonliving. They are DNA or RNA encapsulated in a protein coated capsule with recognition sites to bind to specific target sites on bacteria and insert their genetic material for viral replication or to induce changes in the bacterial genetic material.
Why does lysogenic bacteriophage contribute to bacterial virulence?
The genetic material of the phage can be passed on to future generations of cells.
Describe the contributions of hershey and chase to the understanding that DNA is the genetic material?
Hershey and Chase radioactively labelled T2 bacteriophage with P (DNA) and S (protein) to determine if protein or DNA carried the genetic material. They let the bacteriophage infect E.coli. The radioactive material found in the host E.coli contained the radioactive P (found in DNA) as the bacteriophage had multiplied inside the cell, but the radioactive S was not found inside the cell. Therefore DNA is the hereditary molecule resorce - some other guy off the internet
Who concluded that the genetis material of a bacteriophage is DNA?
The scientists Alfred Hershey and Martha Chase conducted a series of experiments at the Carnegie Institute of Washington in 1952, and concluded that the genetic material of a bacteriophage was DNA.
What attaches to the bacteria and injects the hereditary material?
A bacteriophage. A virus that lands on the bacteria and injects the genetic material. Often, T even phages. ( T-2 and T-4 phages )
What is the difference between a bacteriaiophage and a prophage?
A bacteriophage is a completely assembled virus capable of landing on a bacterium and injecting it's genetic material in lysis, or a lysogenic attack. A provirus is a virus that has incorporated it's genetic material into the genetic material of the host for continual replication, thus, " before " the phage. This is the lysogenic phase of viral attack.
A bacteriophage typically attaches to the bacterium and then?
It's genetic material and some enzymes sometimes which hijack the bacteria into making more viruses.
