Question
Define the follwoing terms :
(a) gene flow
(b) Chromosomal aberrations
(a) gene flow
(b) Chromosomal aberrations
✓
Answer
(1)It is the elimination or addition of the genes of certain characters when some animals in population migrate or dies or immigrate. It changes the gene frequency of remaining population.
(Change in frequency of genes in a gene pool is called genetic flow)
(2)
(Change in frequency of genes in a gene pool is called genetic flow)
(2)
- Chromosomal aberrations are alterations in chromosome structure or number that cause variations in gene sequence or order.
- These changes can include deletions (loss of chromosome segments), duplications (repetition of segments), inversions (segments reattached in an inverted orientation), and translocations (segments relocated to non-homologous chromosomes).
- Changes to genes can have several biological repercussions.
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