Match List-I with List-II.
List - I | List - II | ||
---|---|---|---|
(A) | Cytokine barriers | (I) | Mucus coating of respiratory tract |
(B) | Cellular barriers | (II) | Interferons |
(C) | Physiological barriers | (III) | Neutrophils and Macrophages |
(D) | Physical barriers | (IV) | Tears and Saliva |
Choose the correct answer from the options given below :
Select the correct statement/s with respect to mechanism of sex determination in Grasshopper.
(A) It is an example of female heterogamety.
(B) Male produces two different types of gametes either with or without X chromosome.
(C) Total number of chromosomes (autosomes and sex chromosomes) is same in both males and females.
(D) All eggs bear an additional X chromosome besides the autosomes.
Choose the correct answer from the options given below :
Incorrect set of quantum numbers from the following is :
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Ionisation enthalpy increases along each series of the transition elements from left to right. However, small variations occur.
Reason (R) : There is corresponding increase in nuclear charge which accompanies the filling of electrons in the inner d-orbitals.
In the light of the above statements, choose the most appropriate answer from the options given below :