True
Changes in the transcription of mRNA or the translation of a polypeptide are not considered to be mutations because they are not permanent changes to the cell.
Explanation:
The half-life of mRNA and proteins is short. mRNA has an average of 10 hours of life span while proteins have an average of several days. Therefore mutation in these biomolecules will only persist as long as this mutated mRNA of protein exists. After its life-span, the molecule is degraded and replaced by a non-mutated mRNA or proteins. This is because the piece of DNA that codes for the mRNA and subsequent protein is not mutated. A mutation on DNA is the permanent kind of mutations because DNA is a highly stable molecule that stores information about the cell.
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Answer:
where is option I can't see
A,B,C and D
A. increase in the number of available neurotransmitters
B. decrease in the number of available neurotransmitters
C. increase in the number of receptors and receptor sites
D. the ability of the synapse to change in strength and function when the pathway is overused or underused
A) Vibrations
Sounds vibrate the eardrum
