The slender, long and slightly curved beak of the sun-bird is an adaptation for breeding for feeding on Posted on:
All the sons of a colour-blind woman will be coloured blind regardless of the state of the father because Posted on:
The F1 of a cross between a tall and a dwarf plant was tall. The F1 was advanced to F2. How many of 120F2 plants will be dwarf? Posted on:
A man with blood group a is married to a woman with blood group A. Which of the following group combinations is possible if the family has three children? Posted on:
