Advertisements
Advertisements
प्रश्न
Very short answer question.
If variation occurs in a population by chance alone and not by natural selection and brings a change in frequencies of an allele. What is it called?
Advertisements
उत्तर
If the variation in a population occurs by chance alone and not by natural selection and brings about a change in frequencies of an allele, it is called genetic drift.
APPEARS IN
संबंधित प्रश्न
Overproduction is the principle of
(A) Lamarckism
(B) Theory of organic evolution
(C) Panspermia theory
(D) Modern theory of evolution
Give two chromosomal similarities between man and apes.
Transfer of gene between the population that differ genetically from one another is called _____.
(A) Gene mutation
(B) Gene flow
(C) Genetic drift
(D) Genetic recombination
Match the following:
| Column- I | Column- II |
| 1. August Weismann | a. Mutation theory |
| 2. Hugo de vries | b. Germplasm theory |
| 3. Charl Darwin | c. Theory of acquired characters |
| 4. Lamark | d. Theory of natural selection |
Which theory provides explanation for both natural selection as well as mutation?
Which of the following is TRUE for zygote mortality?
Fertilization between opposite mating gametes leads to ______.
Reasons for diversity in a living being is:
Define the term:
Genetic drift
What is Genetic recombination?
