The third option hope this helped
Protein Function and Malfunction in Cells. Transcription and translation ensure that a linear array of nucleotides in the DNA of a gene will be converted into a linear array of amino acids in the primary polypeptide chain. There is a precise correspondence of codons in DNA to amino acids in protein.
Hope this helps :)
B.) crossing over, this is when chromosomes exchange DNA
Using the theories of nervous system, we got it is true that inhibition of the sympathetic nervous system inhibits urination primarily by inhibiting the detrusor muscle.
Nervous system involves large number of mechanisms at the same time.
The parasympathetic nervous system stimulates the detrusor muscles to contract, causing the person to urinate. This sympathetic nervous system stimulates the contraction of the internal urethral sphincter, causing the person to hold the urine. Somatic efferent neurons stimulate contraction of the external urethral sphincter, which is the skeletal muscle.
Hence, inhibition of the sympathetic nervous system inhibits urination primarily by inhibiting the detrusor muscle is true.
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