Advertisements
Advertisements
Questions
Give any ‘two’ factors responsible for genetic variation.
Explain any two causes of genetic variation.
Advertisements
Solution
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.
RELATED QUESTIONS
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?
What is Isolation?
The proportion of an allele in the gene pool to the total number of alleles at a given locus is called _______.
Define the term ‘Mendelian population’.
Which of the following phenomena results in genetic recombination?
After the industrial revolution in Great Britain in 1845 which of the following occurred?
Reproductive isolation does not occur due to ______.
Sewall Wright effect is ______
Which animal was very conspicuously visible on the tree trunks after the industrial revolution (1845) in Great Britain?
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?
