Question

Explain theory of Mutation.

Answer 1

Answer:

hiii

your answer is here !

Explanation:

Mutation theory, => idea that new species are formed from the sudden and unexpected emergence of alterations in their defining traits. Advanced at the beginning of the 20th century by Dutch botanist and geneticist Hugo de Vries in his Die Mutationstheorie (1901–03; The Mutation Theory), mutation theory joined two seemingly opposed traditions of evolutionary thought. First, its practitioners, often referred to as mutationists, accepted the primary contention of saltationist theory, which argued that new species are produced rapidly through discontinuoustransformations. Saltationist theory contradicted Darwinism, which held that species evolved through the gradual accumulation of variation over vast epochs. Second, mutationists tended to hold the strict Darwinian line that all differentiation is for the good of the species, which differed from the saltationist idea that some organismic variations are inherently undesirable. The second argument was premised on

the belief that more variation provided better opportunities for adaptation to a variable environment. The dovetailing of seemingly antithetical traditions made mutation theory one of the vanguard movements in early 20th-century evolutionary and genetic theory.

FOLLOW ME !

Answer 2

Info on Mutation Theory:-

1. This was given by Hugo de Vries.

2. This book was based on Oenothera Lamarckiana or evening primrose.

3. Mutation is the sudden Changes of genetic material or DNA and hence all are inheritable.

4. In addition to recombination, mutation is another phenomenon that leads to variation in DNA.

5. Mutation is a discontinuous source of variations and provides raw material for evolution.

Criticisms of mutation Theory:-

1. According to Hugo de vries concept Natural mutations are not very common.

2. Mutations are normally recessive.

3. Sometimes mutations are harmful.

4. Usually in this all characters are dominant.