Consider the following hormones and their role in the workings of the endocrine system: Where the hormone is produced. Hormone(s) secreted. Hormone function. Adrenal glands. Aldosterone. Regulates salt, water balance, and blood pressure.
Sometimes there are tissue-specific mutations that control formation of certain tissues and/or organs. For instance, if mutation affects skin then the skin would be wrinkly/ugly but organism would still develop.
August Weismann disproved, or attempt to disprove the theory of Lamarckism (which states that: the adaptive trait gained by an organism during its life time can transfer to the new generation of organism; in contrast, proponents of this theory states: changes to genes can only be done through natural selection, and the experiences of changes to an ...