Prokaryotic cells DO NOT have a nucleus, so look for those
The DNA in the Prokaryotic cells is not enclosed within the Nuclear membrane. <span />
<em>The true statement states that;</em>
A. When levels of the amino acid are high, it binds to the repressor, allowing synthesis of this amino acid to proceed.
<u>E. coli needs amino acids to survive. </u>
It's a tissue. An organ is a group of different tissues which (though they perform slightly different functions), work together in the same general processes.
Because of ionic bond I think