Testosterone helps RNA polymerase transcribe certain genes. It is a steroid hormone.
<h3>Testosterone and gene expression</h3>
Testosterone is a steroid hormone produced in the gonads and secreted by the Leydig cells.
During gene expression, testosterone helps to RNA polymerase, which is a key enzyme that acts during transcription.
During transcription, RNA polymerase sequentially adds nucleotides in order to form a single strand RNA.
Learn more about transcription here:
brainly.com/question/1048150
The ultimate purpose of life is to reproduce and pass on the genes to the offspring.
B. Is correct because in mutualism both species benefit. It could be symbiosis but mutualism is more specific.