question_answer

Which of these is a dominant  factor ?

A) Rh factors                          

B) Haemophilia

C) Albinism                             

D) Colour blindness

Correct Answer: A

Solution :

Rh factor was hrst of all reported m RBCs ot a monkey by Landsteiner and Weiner in 1940. Person having Rh factor is called                                                                                                                          and without Rh factor \[R{{h}^{-}}.R{{h}^{+}}\] is dominant over \[R{{h}^{-}}.\] About 85% of world people are \[R{{h}^{+}}\] and 15% are of \[R{{h}^{-}}.\] Percentage of Rh+ people in India is 97% of the population. Rh factor is found in man and rhesus monkey, it is not reported from other animals.