26. (i) What is meant by traits of an individual?
(ii) Explain inherited traits and acquired trait.
(iii) Define speciation. List the factors which could lead to rise of new
species.
Answers
Answer:
1. A trader is an individual who engages in the buying and selling of financial assets in any financial market, either for himself or on behalf of another person or institution. The main difference between a trader and an investor is the duration for which the person holds the asset.
2. acquired trait cannot be passed to progeny while inherited traits can be. 2)acquired trait do not bring changes in the DNA of germ cell instead bring in somatic cells while genes of inherited traits are present in DNA of germ cell.
3. the formation of new and distinct species in the course of evolution
factors that could lead to rise of new species
.Genetic drift.
.Natural selection.
.Genetic mutation.
.Geographical isolation.
.Reproductive isolation.
.Environmental factors on the isolated populations.
.Quantum of genetic variant inherited from one generation to the next generation
I)What is meant by traits of an individual?
Answer:
Traits are the characteristic property of an organism which are controlled by some specific genes. They can be either inherited or acquired. Inherited trait is a distinguishing quality or characteristic, which one acquires from the ancestor. These involve changes in the DNA.
(ii) Explain inherited traits and acquired trait.
Answer:
Acquired and Inherited Traits. Acquired traits are the one that a person develops during his lifetime. These are not passed from one generation to another. On the other hand, inherited traits are present in the person since the time of his birth and are passed on from one generation to another.
(iii) Define speciation. List the factors which could lead to rise of new species.
Answer:
The process of development of a new species by evolution or by any genetic modification of the existing species in a population is called as speciation. Factors that lead to speciation include genetic drift, natural selection, geographical isolation, mutation.