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प्रश्न
Give any ‘two’ factors responsible for genetic variation.
Explain any two causes of genetic variation.
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उत्तर
Gene mutations, gene flow, genetic recombination, genetic drift, and chromosomal aberration are some factors or Causes responsible for genetic variation.
- Gene mutations: A sudden, permanent heritable change in DNA, such as a point mutation within a gene, leads to variations by altering the phenotype of an organism.
- Gene Flow: The movement of genes into or out of a population through migration, gametes, or DNA segments, which changes gene frequencies and contributes to genetic variation.
संबंधित प्रश्न
Overproduction is the principle of
(A) Lamarckism
(B) Theory of organic evolution
(C) Panspermia theory
(D) Modern theory of evolution
The proportion of an allele in the gene pool to the total number of alleles at a given locus is called _______.
What is hybrid sterility?
Which of the following phenomena results in genetic recombination?
Black colored form became dominant over the light colored form in England during industrial revolution after 1845. This can be owed to ______.
Natural selection of black winged moth (Biston carbonaria) over white winged moth (Biston betularia) occurred due to ____________.
Industrial melanism is one of the best example for ______.
Sewall Wright effect is ______
Domestic wheat, which has 42 chromosomes, is probably hexaploid (6n), whereas the haploid number in the ancestral ones was 7. Find out the right reason as to how are such plants produced?
Define the term Chromosomal aberrations.
