Question

Draw and explain a pedigree chart

Answer 1

Answer:

A pedigree chart is a diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors from one generation to the next,most commonly humans, show dogs, and race horses.

and race horses.The word pedigree is a corruption of the Anglo-Norman or "crane's foot", either because the typical lines and split lines (each split leading to different offspring of the one parent line) resemble the thin leg and foot of a crane or because such a mark was used to denote succession in pedigree charts

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Answer 2

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▶ pedigree analysis is the study of transmission of particular traits over the generations for finding out the possibility of their occurrence in the future generation...

▶importance

☀ it is used to know the possibility of expressive or recessive allele which may cause genetic disorder

☀ it shows the origin of trait and inheritance pattern of that trait in a family

☀ it predict the harmful effect of marriage between close relatives

☀ it extenously used in medical research ..