The daughter born to haemophilic father and normal mother could be

Given below is a pedigree chart of a family with five children. It shows the inheritance of attached earlobes as opposed to the free ones. The squares represent the male individuals and circles the female individuals Which one of the following conclusions drawn is correct

Study the pedigree chart given below.

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What does it show?

A son of a colourblind father and normal homozygous mother marries to a daughter of normal father and heterozygous mother than their children will be

One way of detecting sex linked inheritance is