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Is sex pilus found in all bacterial cells?
No, not all bacteria form sex pili.
What transfers genetic information from one bacterial cells to another?
A sex pilus
What structures does a bacteria form that is used to transfer DNA?
Pilus, plasmid
What is a tubular appendage found on some bacteria that allows transfer of DNA between bacterial cells?
it is called a sex pilus
Do viruses undergo conjugation?
No. Conjugation applies to bacterial "sex" where a sex pilus is involved in the exchange of genetic material. A virus relies upon a hosts'genetic material for reproduction.
Bacteria usually reproduce asexually However sometimes they do exchange genetic information during conjugation Which structure do they form during this process that is used to exchange genetic info?
Pilus Pilus, Plasmid
Is pilus a type of virus?
Pilus is a type of virus because it is found on the tops of bacteria. So my answer concludes with yes.
What is the function of pilus?
it is a wiggily thing
What is elongated hollow appendage used for DNA transfer to other bacterial cells?
Bacteria with the F plasmid (free or integrated) make pili (singular pilus, sometimes referred to as the sex pilus) to connect with bacteria that do not have the F plasmid to initiate DNA transfer. However, the pili are actually used as a harpoon to reel in the other bacteria so that physical contact between the membranes of the bacteria could be made. DNA is only transferred after the fusion of the cell membranes. It is also a common misconception to think that bacterial conjugation is like 'sex' since it does not involve recombination of genes or cycles of haploidy and diploidy.
Can plasmids be transferred into other bacteria?
Plasmids are often transferred to other bacterial cells via the sex pilus. This mechanism is a major cause in the spread of antibiotic resistance genes.
What is a short thick appendage that enables bacterium Escherichia coli to attach to other surfaces?
Pilus, or "pili" for plural.
Is the word pili plural or singular?
A "Pilus" is the Latin for a hair, so following the Latin rules for plurals, the plural is "pili".
