Advertisements
Advertisements
प्रश्न
"We cannot pass on to our progeny the experiences and qualifications earned during our life time". Justify the statement giving reason and examples.
उत्तर
The experiences and qualifications that a person earns during his/her lifetime are examples of acquired traits. These traits cannot be inherited. For example, a wrestler develops large muscles because of his training programme; it does not mean that his offspring will necessarily have large muscles. These characters do not affect the DNA make-up of germ cells of an organism; thus, they are not passed on to the next generation.
On the other hand, inherited traits are the traits that are transferred from the parents to their offspring. Inherited traits are coded by genes present in the DNA of gamete cells from where they are transferred to the progeny. Examples of inherited traits are skin colour and eye colour.
APPEARS IN
संबंधित प्रश्न
Explain the concept ‘survival of the fittest’.
List three distinguishing features, in tabular form, between acquired traits and the inherited traits.
What are genes? Where are the genes located?
In what way are analogous organs evidence for evolution?
According to scientists, aves have evolved from :
(a) mammals
(b) amphibians
(c) reptiles
(d) arthropods
Read the following statement and justify same in your own words with the help of suitable example.
Human evolution began approximately 7 crore years ago.
List two differences between acquired traits and inherited traits by giving an example of each.
Very short answer question.
Define the Gene pool
Very short answer question.
Define the Gene frequency
The idea of mutation was brought forth by:
