The correct answer is (A and E) The operator region where the mutation occurs and the operator does not binds to the repressor normally.The mutation can also occur in the Lacl gene which leads to an inactive lac repressor.
- The lacI gene helps in regulation of lac operon. It is also responsible for the metabolism of lactose in bacteria.
- The mutation could have occured in the operator region, where after mutation the repressor would not be able to bind to operator.
what are the choice answers
<span>the structure of a plasma membrane depend on the amphiphilic nature of phospholipids by </span>the amphiphilic molecules arrange themselves into a bilayer, with their hydrophilic phosphate-containing heads facing the water on each side of the membrane and their hydrophobic tails directed twd the center, avoiding water.
RNA polymerase binds to the promoter sequence on the DNA molecule.
The promoter has a TATA box, which binds with the TBP (TATA binding protein) that is in the RNA polymerase multiprotein complex. The TSS (transcription start site) indicates where RNA polymerase can start transcription.
<span>Genes.Genes are the working unit of the hereditary character of DNA. Genes act as instructions usually coding for a particular protein or function. One form of gene which are called alleles <span>determines the traits that can be passed on from parents to offspring.</span></span>
