the answer is A. because it is right
RNA polymerase binds to the lac promoter and begins transcribing
the stretch of DNA to messenger RNA.
Therefore, in other words, the stretch of DNA is expressed. The DNA sequence of
the lac promoter 'signals' where the RNA
polymerase will bind and where transcription
will begin. Promoters are found upstream of a gene to be transcribed.
The part of her basic insurance coverage that should help pay for this x-ray is Physicians expense.
Physicians expense also known as regular medical expense insurance is a coverage which provides assistance and benefits for the cost of services such as X-rays or laboratory tests carried out within and outside the hospital, and doctor's monetary charges for nonsurgical care in the health facility, at home or in a doctor's office.
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