Given below is the karyotype of an individual.

(a) What are the characteristic reproductive and physical features of such an individual?
(b) What is the category of such disorders called? How is it caused?

(a). What are noble gases? What is the characteristic of the electronic configuration of noble gases? (b). What is the cause of chemical bonding (or chemical combination) of atoms of elements?

(a) What are gametes? (b) In which sort of reproduction are gametes involved? (c) What is formed when two gametes fuse? (d) What is this act of fusion called ?

What is the resistance between A and B in the figure given below?

In angiosperms, during vegetative reproduction, propagules are produced. What are the characteristic features of propagules?

Study the process depicted in the picture given below Which of these are the characteristics of vegetative reproduction? (i) Involves two individuals (ii) Daughter cells are genetically identical to the parent. (iii) The cell division is only mitotic.

What is a vaccine ? How do they act to provide long term immunity to an individual who is vaccinated ?

Study the map given below and answer the questions that follow: (a) Name the transport route shown in the map. (b) Name the continents connected with this route. (c ) Name the extreme points of this route. (d) What is the length of this route? (e) How is this railway network important for the economy? (f) Explain any two features of this route.