A thalassemia baby is born to a normal non thalassemic parents. Explain the possible causes for the occurrence of thalassemia.

Endocrine glands control and co-ordinate the body functions through secreting certain chemical messengers called hormones. Due to certain physiological reasons, the blood glucose level of otherwise normal persons increases. Give the possible cause for the increases in blood glucose level.

Thalassemia and sickle cell anaemia are caused due to a problem in globin molecule synthesis. Select the correct statement

The sex of the new born child is a matter of chance and neither of the parents may be considered responsible for it.What would be the possible fusion of gametes to determine the sex of the child?

(i) The sex of the new born child is a matter of chance and neither of the parents may be considered resposible for it. What would be the possible fusion of gametes to determine to sex of the child? (ii) A pure tall plant (TT) is crossed with pure dwarf plant (tt), what would be the F_(1) and F_(2) generations? Explain.

If both parents are carriers for thalassemia , which is an autosomal recessive disorder what are the chances of pregnancy resulting m an affected child ?