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Assertion: According to the theories proposed by Hugo de Vries, the process of speciation is primarily instigated by mutations, which he labeled as "saltation."
Reason: The rationale behind this designation stems from the belief that mutations are not only random but also possess a directional nature, thereby leading to significant evolutionary changes.
Both Assertion & Reason are True &the Reason is a correct explanation of the Assertion.
Both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
Assertion is True but the Reason is False.
Both Assertion & Reason are false.
Answers (1)
The assertion states that according to Hugo de Vries, the process of speciation is primarily initiated by mutations, which he called "saltation." This is true. De Vries was a notable biologist who proposed the theory of mutation, emphasizing the role of sudden and significant genetic changes in the formation of new species.
However, the reason provided states that mutations are not only random but also possess a directional nature, leading to significant evolutionary changes. This reason is false. Mutations are generally considered random and do not possess an inherent directional nature. While mutations can contribute to evolutionary changes, they do not always lead to significant or directed shifts in species.
Therefore, the assertion is true, but the reason is false and hence making option 3 the correct answer.
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