Question
Question: Which of the following symbols and information is correct? 
Explanation
Solution
A pedigree is a family tree or chart made of symbols and lines that represent the members of the family and the relation between them. Pedigree often constructed as it is a visual tool for documenting the biological inheritance of a genetic disease.
Complete answer:
In pedigree square represent male and circle represents females , horizontal line connecting male and female represents mating between male and female.here are some representations used in a pedigree.
By the information carried by the figure, Option C is correct.
Hence the correct answer is option ‘C’.
Note: On the basis of the information in a pedigree, geneticist tries to determine the mode of inheritance of a trait.