Advertisements
Advertisements
प्रश्न
Define the term gene flow.
Advertisements
उत्तर
Gene flow is the movement of genes into or out of a population. Gene movement may be in the form of migration of organism, or gametes or segments of DNA Gene flow also alters gene frequency, causing evolutionary change.
APPEARS IN
संबंधित प्रश्न
Why only left ovary and oviduct arc present in birds?
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?
The total genetic information encoded in sum total of genes in a Mendelian population is called ______.
Genetic drift is more significant in ______
Hybrids develop to maturity but become sterile due to failure of proper gametogenesis. This is a post mating barrier called ____________.
Which of the following phenomena results in genetic recombination?
The modem synthetic theory of evolution does NOT include ____________.
Identify the INCORRECT statement.
Match the following
| Column A | Column B | ||
| (i) | Dryopithecus | (a) | Java and Peking |
| (ii) | Ramapithecus | (b) | Toung in South Africa |
| (iii) | Australopithecus | (c) | Lake Victoria of Africa |
| (iv) | Homo erectus | (d) | Shivalik hills in India |
Which of the following is a pre-mating mechanism of isolation?
