Question

Match the lists and find the correct option.

(a)	ABO blood group	(i)	Landsteiner and Wiener
(b)	Rh factor	(ii)	Morgan and Castle
(c)	Sex linkage of Drosophila	(iii)	Landsteiner
(d)	Chromosomal theory of linkage	(iv)	T.H. Morgan

a) a-iii, b-i, c-iv, d-ii
b) a-iv, b-i, c-iii, d-ii
c) a-ii, b-i, c-iv, d-iii
d) a-iii, b-ii, c-iv, d-i

Answer 1

To answer this, try to remember what each term in the first list means and which scientist was the first one or is related to the term mentioned in the 1st list. All the terms mentioned in the 1st list have chromosomes as a common link. By using this you can get the correct answer.

Complete answer:
Antigens A and B are antigens found on the outside of red blood cells. Both antigens are absent in O cells. The type of antigen on your red blood cells is determined by hereditary factors. If you have the An antigen, your red cells are classified as Group A. It's also possible to have both An and B antigens, indicating that your blood group is AB.
Around 50 different red blood cell antigens make up the Rh blood bunch system. The Rh framework's main antigen is D. RhD is another name for it. In Australia, approximately 83 percent of people have the D antigen on their red blood cells. Rh positive is the blood type that they have. The remaining $17\%$ of people are Rh negative, meaning they don't have the D on their red blood cells.
Landsteiner received the Nobel Prize for his depiction of the human ABO blood group framework.
Rhesus (Rh) factor is a protein found on the surface of red platelets that has been acquired. Karl Landsteiner and Alexander S. Wiener discovered it in 1937.
The legacy of characters associated with a specific sex is referred to as sex-connected legacy. T.H. Morgan discovered it in Drosophila.
Morgan and Castle devised the chromosome hypothesis of linkage, which stated that the proclivity of qualities to stay together will be greater if the linkage is more solid, and the proclivity to isolate will be greater if the linkage is weak.

Hence, option A-a-iii, b-i, c-iv, d-ii is the correct answer.

Note:
The proportion of Rh-negative people varies by country (for example, only about $5\%$ of India's population is Rh negative). A RhD-negative person with a RhD immune response can kill any RhD-positive red cells they come into contact with. This can happen during bonding or when pregnant with a child who is RhD positive. Rh is necessary for women who are or may become pregnant, as antibodies may damage both the mother and the infant.