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प्रश्न
What is meant by speciation?
What is speciation?
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उत्तर
The formation of a new species by evolution or any genetic modification of the previously existing species in a population is called speciation.
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संबंधित प्रश्न
What factors could lead to the rise of a new species?
Will geographical isolation be a major factor in the speciation of a self-pollinating plant species? Why or why not?
List four factors that could lead to speciation. Which of them cannot be a major factor in the speciation of a self-pollinating plant species?. Give reason to justify your answer.
Name one reptile in given case where higher incubation temperature leads to the development of female progeny.
Name two human traits which show variation.
The palisade cells of a species of plant contain 28 chromosomes. How many chromosomes will there be in each gamete produced by the plant?
Select the group which shares the maximum number of common characters.
A plant has two varieties, one with red petals and the other with white petals. When these two varieties are cross-pollinated, all the offsprings have red petals?
(a) Which gene is dominant?
(b) Choose suitable letters to represent the two genes.
Name the famous book written by Charles Robert Darwin.
State the various factors which could lead to the formation of new species.
Does geographical isolation of individuals of a species lead to the formation of a new species? Provide a suitable explanation for your answer.
Define 'speciation'. Explain how speciation occurs.
Define 'natural selection'.
New species may be formed if:
- DNA undergoes significant changes in germ cells
- chromosome number changes in the gamete
- there is no change in the genetic material
- mating does not take place
What is a species?
The process by which new species develop from the existing species is known as ______
In the following Question, the Assertion and Reason have been put forward. Read the statements carefully and choose the correct alternative from the following:
Assertion: Speciation is the reproductive isolation amongst once interbreeding population.
Reason: Genetic drift, Natural selection, and Severe DNA change can cause speciation.
The theory of evolution of species by natural selection was given by
