ISOGENES Meaning and
Definition
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Isogenes refer to a group of genes that are derived from a common ancestral gene through horizontal gene transfer or gene duplication within a population or species. The term "isogene" is a combination of the words "iso" meaning same and "gene" which refers to a unit of heredity. Isogenes share a significant sequence similarity due to their origin from a common source gene.
Isogenes can arise through two primary mechanisms: horizontal gene transfer and gene duplication. Horizontal gene transfer occurs when genes are transferred between different species or organisms that are not parent to offspring. This transfer can occur through various means such as transformation, conjugation, or transduction. On the other hand, gene duplication occurs when a gene is duplicated within an organism's genome. This can lead to the formation of multiple copies of the same gene in an individual or population.
Isogenes can have different functions and expression patterns compared to their ancestral gene. Over time, through processes like genetic drift and natural selection, isogenes can accumulate variations and undergo functional divergence. This can result in the emergence of new gene functions or expression patterns, providing the basis for genetic diversity within a population or species.
Understanding the presence and function of isogenes is essential for comprehending the mechanisms of genetic evolution and diversity. By studying isogenes, researchers can gain insights into the processes that drive genetic adaptation and speciation.
Common Misspellings for ISOGENES
