Answer :
In a pedigree chart, a male showing the specific trait being studied is indicated by b. darkened square.
Pedigree charts are used to show the inheritance pattern of a particular trait within a family, the squares represent males while circles represent females. The shading of these shapes indicates whether or not an individual expresses the trait being studied. If a shape is clear, it means that the individual does not express the trait. On the other hand, a shape that is darkened indicates that the individual expresses the trait.
Inheritance patterns can be traced through generations using pedigree charts, allowing for the identification of individuals who carry genetic mutations that may lead to diseases. By analyzing the patterns of inheritance, genetic counselors can provide advice to families on the risks of passing on genetic disorders. Overall, the correct answer is b. darkened square, pedigree charts are a useful tool in studying genetic inheritance patterns and can aid in predicting the likelihood of individuals passing on specific traits to their offspring.
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