In pedigree analysis,the square,blackened,and | vedclass

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(C) In pedigree analysis:- $A$ square represents a male.- $A$ blackened (shaded) square or circle represents an affected individual.- $A$ horizontal l

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Male,affected individual,parents

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(C) In pedigree analysis:- $A$ square represents a male.- $A$ blackened (shaded) square or circle represents an affected individual.- $A$ horizontal line between two symbols represents mating (parents).Pedigree analysis is the study of the inheritance of genetic traits in several generations of a human family,represented as a family tree diagram.Advantages:$(i)$ It helps in genetic counselling to avoid disorders.$(ii)$ It shows the origin of a trait and the flow of a trait in a family.$(iii)$ It is important to know the possibility of a recessive allele that can cause genetic disorders like colour blindness,haemophilia,etc.

In pedigree analysis,the square,blackened,and horizontal lines represent:

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