Question

Assertion: Mutations cause evolution.
Reason: Ancon sheep and hornless cattle are developed by inducing mutation.
A. Both assertion and reason are correct and the reason is the correct explanation for assertion
B. Both assertion and reason are correct but the reason is not the correct explanation for assertion
C. Assertion is correct but the reason is incorrect
D. Both assertion and reason are incorrect

Answer 1

Hint: Evolution is a change in biological populations' heritable characteristics over successive generations. The expressions of genes that are passed on during reproduction from parent to offspring are these characteristics. The evolutionary process that has led to biodiversity, including ecosystems, individual organisms and molecules, at all levels of biological organization.

Complete answer: As a consequence of mutation, genetic recombination and other causes of genetic variation, different traits appear to occur within any given population. When evolutionary mechanisms such as natural selection (including sexual selection) and genetic drift act on this variation, evolution happens, resulting in some features being more dominant or uncommon within a population. Natural selection, genetic drift, gene flow and mutation bias are processes that can contribute to changes in allele frequencies. Inhabitants. Evolution is typically the result of the accumulation of large numbers of variations in a population over generations, a process called microevolution. These variations are called mutations in the genetic material. Ancon sheep and hornless cattle are also the product of spontaneous mutation, which has been found to be advantageous to breeders and so breeding studies have been carried out to obtain more individuals with these features. It's not an induced mutation, though. Therefore, only the assertion is the correct statement and reason is the incorrect statement.
Hence, option B is the correct answer.

Note: Evolution by natural selection is the mechanism by which, in successive generations of a population, characteristics that increase survival and reproduction become more common. Genetic drift is the spontaneous fluctuations in allele frequencies from one generation to the next in a population. Gene flow includes gene exchange between populations and species.