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There is a restriction endonuclease called $EcoRI$. What does the $"co"$ part in it stand for?
A
$coli$
B
colon
C
coelom
D
coenzyme
Detailed Solution
Restriction enzymes are named after the bacterium from which they are isolated.
The first letter of the name comes from the genus and the next two letters from the species of the prokaryotic cell.
EcoRI comes from $Escherichia\ coli$ RY 13: 'E' is from the genus $Escherichia$ and 'co' is from the species $coli$.
The letter 'R' is derived from the name of the strain (RY 13), and the Roman numeral 'I' shows the order in which the enzymes were isolated from that strain.
Hence 'co' stands for $coli$.
The first letter of the name comes from the genus and the next two letters from the species of the prokaryotic cell.
EcoRI comes from $Escherichia\ coli$ RY 13: 'E' is from the genus $Escherichia$ and 'co' is from the species $coli$.
The letter 'R' is derived from the name of the strain (RY 13), and the Roman numeral 'I' shows the order in which the enzymes were isolated from that strain.
Hence 'co' stands for $coli$.