Why are traits acquired during life time of an individual not inherited?
Answers
Explanation:
The traits acquired during life time of an individual are not inherited.
The traits acquired during life time of an individual include his unique hair styles, different type of dressing, consumption of different types of foods, etc. Such traits are not inherited by their progeny it is because these are the changes which does not have any effect on DNA of the germ cells.
Any change which affects the DNA arrangement of the germ cell may leads to transfer of the mutation to the progeny cells. The traits acquired by the individual during his life time are practiced by him due to the situation and the environment in which he/she lives after his birth.
As the traits acquired during life time of an individual does not interfere with the genetic makeup of the DNA of the germ cells, they are not inherited.
Certain changes occur in the structure or function of the body parts due to environmental factors. Such changes in somatic tissues are acquired traits that do not involve germ cells and genetic material (DNA). Therefore, these changes are not passed to the next generation. The traits are only inherited if changes take place in the genetic material. Examples: Starving beetles and surgical removal of tail in mice.
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