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
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 |
What is Isolation?
Loss of gene from chromosome occurs due to ______
What is a small interbreeding group of population called?
Identify the INCORRECT statement.
Which animal was very conspicuously visible on the tree trunks after the industrial revolution (1845) in Great Britain?
Which event is represented by the above diagram, related to chromosomal aberrations?
Which of the following is a pre-mating mechanism of isolation?
If the members of two different populations do not interbreed due to difference in the structure of reproductive organs, then it is called ______ isolation.
