Hormones are specific. explain how a receptor results in the cell being able to respond to only one specific hormone.

This is because the active site of the receptors on the cell and the hormone are akin to lock and key respectively. The conformations of the receptor’s active site and the hormone allow them to interlock with specificity. The receptor (which is a transmembrane protein) is connected to second messengers inside of the cell that triggers a biochemical cascade in response to the hormone.

dna damages cause changes in the structure of the genetic material and prevents the replication mechanism from functioning and performing properly. dna damage and mutation have different biological consequences. while most dna damages can undergo dna repair, such repair is not 100% efficient.

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.