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प्रश्न
Why are traits acquired during the life-time of an individual not inherited?
उत्तर १
This happens because an acquired trait involves change in non-reproductive tissues which cannot be passed on to germ cells or the progeny. Therefore, these traits cannot be inherited.
उत्तर २
Traits acquired during the lifetime of an individual are not inherited, as these traits develop in the individual in response to the environment. Only those traits which are associated with the DNA of the parents are passed onto children. Acquired traits do not make any changes in the DNA; hence, they are not passed from parents to children.
संबंधित प्रश्न
Some plants occur in one of the two sizes : tall or dwarf. This characteristic is controlled by one pair of genes. Tallness is dominant to dwarfness. Choose suitable letters for this gene pair.
Which of the following gas was not present in early earth atmosphere?
(a) Ammonia
(b) Oxygen
(c) Hydrogen sulphide
(d) Methane
Out of the wing of a bird, wing of an insect and the wing of a bat :
which two are analogous organs?
Explain the following :
(a) Speciation
(b) Natural Selection
Multiple choice question.
Gene frequency in a population remain constant due to –
The Sewall Wright effect is also referred to as ______
The sequence of gradual changes which takes place in the primitive organisms over millions of years in which new species are produced is known as ______
Had Darwin been aware of Mendel’s work, would he been able to explain the origin of variations. Discuss.
Which fossil animal is considered as the connecting link between reptiles and birds? Give any one character of each class found in it.
Define the following term:
Evolution
