Do bacterial cells have RNA?
Do bacterial cells have RNA?
For instance, bacteria contain a single type of RNA polymerase, while eukaryotes (multicellular organisms and yeasts) contain three distinct types. In spite of these differences, there are striking similarities among transcriptional mechanisms.
Do bacteria cells have DNA?
The DNA of bacterial cells is found loose in the cytoplasm. It is called chromosomal DNA and is not contained within a nucleus. Bacteria also have small, closed-circles of DNA called plasmids present in their cytoplasm. Unlike the chromosomal DNA, plasmid DNA can move from one bacterium to another giving variation.
What does RNA do in a bacterial cell?
Specifically, messenger RNA (mRNA) carries the protein blueprint from a cell’s DNA to its ribosomes, which are the “machines” that drive protein synthesis. Transfer RNA (tRNA) then carries the appropriate amino acids into the ribosome for inclusion in the new protein.
Does virus contain DNA or RNA?
A virus is a small collection of genetic code, either DNA or RNA, surrounded by a protein coat. A virus cannot replicate alone. Viruses must infect cells and use components of the host cell to make copies of themselves. Often, they kill the host cell in the process, and cause damage to the host organism.
Why do viruses not have both DNA and RNA?
Most viruses have either RNA or DNA as their genetic material. The nucleic acid may be single- or double-stranded. The entire infectious virus particle, called a virion, consists of the nucleic acid and an outer shell of protein. The simplest viruses contain only enough RNA or DNA to encode four proteins.
Which virus has both DNA RNA?
Do cells have both DNA and RNA?
The two main types of nucleic acids are DNA and RNA. Both DNA and RNA are made from nucleotides, each containing a five-carbon sugar backbone, a phosphate group, and a nitrogen base. DNA provides the code for the cell’s activities, while RNA converts that code into proteins to carry out cellular functions.
Is a virus an agent?
A virus is an infectious agent of small size and simple composition that can multiply only in living cells of animals, plants, or bacteria.
What is the most expensive virus in the world?
The most expensive malware infection to date was the MyDoom worm, which resulted in roughly $38 billion of total damage.
What happened to the I Love You virus creator?
The man behind the world’s first major computer virus outbreak has admitted his guilt, 20 years after his software infected millions of machines worldwide. Within 24 hours, it was causing major problems across the globe, reportedly infecting 45 million machines. …
Who is the legendary hacker in the Philippines?
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