Why are traits acquired during the life-time of an individual not inherited?
Acquired traits are those, people attain during it life- time due to change in environment and on the other hand, inheritance is the transfer of characters as well as variations or information from one generation to the next by the copying of DNA. Traits are acquired during the life- time not inherited because inheritance occurs during the birth of an individual, and traits are acquired when people learn for their future and to make the changes in their work that does not affect the DNA of the germ cells, like in the inherited traits where DNA get affected by the changes. If any mutation occurs in the germ cell it can give rise to the new trait being acquired by the next successive generation.
You are given kerosene, turpentine and water. In which of these does the light travel fastest? Use the information given in Table 10.3.
| Material medium |
Refractive index |
Material medium |
Refractive index |
| Air | 1.0003 | Canada Balsam |
1.53 |
| Ice | 1.31 | ||
| Water | 1.33 | Rock salt | 1.54 |
| Alcohol | 1.36 | ||
| Kerosene | 1.44 | Carbon disulphide |
1.63 |
| Fused quartz |
1.46 | ||
| Turpentine oil |
1.47 | Ruby | 1.71 |
| Benzene | 1.50 | Sapphire | 1.77 |
| Crown glass |
1.52 | Diamond | 2.42 |
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Welcome to the NCERT Solutions for Class 10 Science - Chapter . This page offers a step-by-step solution to the specific question from Excercise 3 , Question 2: Why are traits acquired during the life-time of an individual not inherited?....
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