Joe Wilson, age 55, has been told by experts that a hearing aid would restore his lost sense of hearing. It is likely that Joe's hearing loss involves problems within the :
O auditory nerve.
O basilar membrane.
O inner ear.
O oval window.
O middle ear.

middle ear.

Explanation:

Age related hearing loss occurs when the person is getting older. This makes the person intolerant to the loud sounds. This occurs in both ears and affects both ear in an equal manner. Hearing aids are the treatment of choice used to treat the hearing loss.

A middle ear hearing loss is most common in older adults they are provided with the implant and suitable for hearing in conditions like skin problem in the ears, narrowing of the canals, malformed ears and closed ear canals.

step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.

a scenario where a cell may be needed to perform a form of endocytosis is when transporting large molecules. a scenario where a cell may be needed to perform a form of exocytosis is when releasing the large molecule from the cell.