A colourblind man has a colourblind sister but a normal brother than phenotype of its parents is
Father colourblind and mother normal
Father normal and mother colourblind
Father and mother both are colourblind
Father and mother both are normal
Most studies on human genetics have been made through
Pedigree analysis is very important in human beings because
The pedigree chart given below shows a particular trait which is absent in parents but present in the next generation irrespective of sexes. Draw your conclusion on the basis of the pedigree.
Colour blindness is a disease usually affecting man but the factor for it is transmitted to the children always by woman. This is because particular factor is located on
The best example for pleiotropy is