Question

Why are traits acquired during the life-time of an individual not inherited?

Answer 1

Change in non-reproductive tissues, on account of acquired traits, cannot be passed on to the DNA of the germ cells. Therefore, experience gained or traits acquired during the life-time of an individual not inherited.

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Answer 2

Non-inherited Traits:

Traits can either inherited or non-inherited from an individual to their offspring. Some traits like preference for certain things like food, manners, emotional responses, etc., which are learned and in practice throughout an individual's lifetime can never be inherited in their offspring. It is due to the fact that these traits are learned from society or parents or friends and it tends to vary for every individual based on their view.

On the other hand, some traits like eye color, height, muscle and facial structures, hair, etc., can be inherited in their offspring through genes. Behavior can also be inherited in some cases like cat puffing its hair when they encounter a threat.