Biology
Grade-9
Easy
Question
Genetic variations arise due to:
- Mutations
- Genetic recombination
- Chromosomal aberrations
- All of the above
Hint:
Three major sources of Genetic variations.
The correct answer is: All of the above
- Genetic variation means difference between DNA within same kind of individuals within a population.
- They can occur by 3 major sources-Mutation, recombination, immigration of genes.
- Mutation-is an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA.
- Recombination- is the aleatory change of genetic material resulting from the meiosis process.
- Immigration of Genes-is the transfer of genetic material from one population to another by migration of individuals or gametes.
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