Advertisements
Advertisements
प्रश्न
State the meaning of inherited traits and acquired traits. Which of the two is not passes on the next generation? Explain with the help of an example.
उत्तर
Inherited traits: The traits that are passed on from one generation to another are called inherited traits. These involve changes in the DNA.
Acquired traits: Those traits that one acquires during one’s lifetime are called acquired traits. Acquired traits are not passed on to the next generation. These involve changes in the somatic cells.
For example: Education is an acquired trait, it cannot be passed on to the progeny.
APPEARS IN
संबंधित प्रश्न
Explain the concept ‘survival of the fittest’.
Write the contribution of Charles Darwin in the field of 'evolution.'
Why are the small numbers of surviving tigers a cause of worry from the point of view of genetics?
Match the terms given in column I with those given in column II :
Column I | Column II |
(1) Fossil | (a) A famous evolutionist |
(2) A theory of evolution | (b) Survival of the fittest |
(3) Probable ancestor of birds | (c) Petrified remains of prehistoric life |
(4) Charles Darwin | (d) Father of genetics |
(5) Gregor Mendel | (e) Archaeopteryx |
Explain the terms 'analogous organs' and 'homologous organs' with examples.
Very short answer question.
Define Organic evolution.
____________ results in variation in gene frequencies within population by chance rather than by natural selection.
What is a connecting link?
Which fossil animal is considered as the connecting link between reptiles and birds? Give any one character of each class found in it.
The first fossil of human form, discovered was ______.