The use of a lighter instead of matchsticks is a way of conserving
An accident victim was successfully transfused with blood from the father whose blood, group is AB. The blood group of the accident victim is
Which of the followig traits in humans is an example of physiological variation?
Individuals belonging to the blood group O are universal donors because ?
Two tall plants were crossed and all the F1 plants were tall. when the F1 plants were selfed, some of the F2 plants were tall while others were short what are the possible genotypes of the original plants ?
