Which of the following is the major source of variation in the origin of new species?
Correct answer: B. Mutation
- A. Migration
- B. Mutation
- C. Selection
- D. Genetic drift
Explanation
Mutation is the most important factor in bringing about the origin of a new species. The mutation is the sudden heritable change and is the seat of all variations or the ultimate source of variation, evolution is a change in the genetic composition of the population brought about when natural selection acts on the variability of the population.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Evolution
Evolution describes heritable change in populations over generations through variation, natural selection and adaptation. Lamarckism explains inheritance of acquired characteristics, while Darwinism explains selection of favourable inherited variations; these historical explanations must not be confused with the modern genetic account of evolutionary change.
Practise Evolution
814 free Evolution MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Evolution questions
According to Hardy-Weinberg theorem, the sum of recessive homozygotes, dominant homozygotes, and heterozygotes is equal to 1, what is represented by 1?
Homologous organs indicate the:
Which of the following ideas was not part of Charles Darwin's theory of evolution by natural selection?
Darwins finches are found in:
The idea of inheritance of acquired characteristics was proposed by:
Organs that are functionally different but structurally alike are termed as: