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Darwin's theory of pangenesis shows similarity with theory of inheritance of acquired characters, then what shall be correct according to it : -
A
Useful organs become strong and developed while useless organs become extinct. These organs help in struggle for survival
B
Size of organs increases with aging
C
Development of organs is due to will power
D
There should be some physical basis of inheritance
Detailed Solution
In his theory of pangenesis, Darwin proposed that every part of the body produces tiny particles called gemmules (pangenes), which travel through the blood and collect in the reproductive cells.
These gemmules pass to the offspring and carry the characters (including acquired ones) of the parent's body parts. This is why the theory resembles Lamarck's inheritance of acquired characters.
The theory thus suggested that there should be some physical (material) basis of inheritance, carried from parents to offspring.
So according to it, there should be some physical basis of inheritance.
These gemmules pass to the offspring and carry the characters (including acquired ones) of the parent's body parts. This is why the theory resembles Lamarck's inheritance of acquired characters.
The theory thus suggested that there should be some physical (material) basis of inheritance, carried from parents to offspring.
So according to it, there should be some physical basis of inheritance.