Question

the gene for red hair is recessive to the gene for black hair. what will be the hair colour of a child if he inherits a gene for red colour from his mother and a gene for black hair from his father?express with the help of flow chart

Answer 1

let the gene of red hair be 'X'
let the gene of black hair be 'Y'
Hence, the gene of mother's hair be 'X' and father's be 'Y'

Flowchart:
Father      Mother
  (Y)             (X)
                   /
______/
     /
Child
  (Z)
Therefore, the child will have black hair since it is ascendant will also contain the recessive red hair attribute but will not be expressed.