LINE OF DOMINANCE Meaning and
Definition
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Line of dominance refers to a concept in genetics that helps determine the inheritance pattern of certain traits or genes within a family or population. It is a visual representation of the presence or absence of a specific trait or gene across generations, which allows for the analysis of the mode of inheritance.
In a line of dominance, each individual is represented by a vertical line, significant for its role in depicting the flow of genetic information across generations. Different symbols or colors are used to represent the presence or absence of a specific trait or gene. By analyzing the pattern of vertical lines, geneticists can identify the relationship between the occurrence of the trait or gene and the mode of inheritance, such as autosomal dominant or autosomal recessive.
Line of dominance not only helps to determine the presence and inheritance of a trait or gene, but it also aids in predicting the likelihood of an individual inheriting that trait from their parents or passing it onto their offspring. By observing the pattern and analyzing the line of dominance, geneticists can make predictions on the probabilities of a trait being expressed within a particular population or family.
Overall, the line of dominance serves as a visual tool, assisting geneticists in understanding the inheritance patterns of specific traits or genes and allowing for accurate predictions of the likelihood of trait expression within a given population.
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