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प्रश्न
Define the term gene flow.
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.
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
Short answer question.
Enlist the different factors that are responsible for changing gene frequency.
What is Genetic variations?
The proportion of an allele in the gene pool to the total number of alleles at a given locus is called _______.
Explain Geographical Isolation
Which theory provides explanation for both natural selection as well as mutation?
Which of the following is TRUE for zygote mortality?
Identify the INCORRECT statement.
Modem synthetic theory encompasses which of the following concepts?
Loss of gene from chromosome occurs due to ______
Physical isolation is also called ______.
Identify the method of reproductive isolation, when members of a population attain sexual maturity at different times preventing interbreeding.
What is a small interbreeding group of population called?
____________ brings about evolutionary changes by favouring differential reproduction of genes.
Fertilization between opposite mating gametes leads to ______.
The movement of genes into or out of a population is known as ______.
Reasons for diversity in a living being is:
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 |
