Which one of the following is the correct description of a certain part of a normal human skeleton? 

(a) Parietal bone and the temporal bone of the skull are joined by fibrous joint 

(b) First vertebra is axis which articulates with the occipital condyles 

(c) The 9th and 10th pairs of ribs are called the floating ribs 

(d) Glenoid cavity is a depression to which the thigh bone articulates

The mutation of a purine to a pyrimidine is known as 

(A)  transition

(B)  frame shift

(C)  nonsens

 (D)  transversion 

Three friends Ajay, Vijay and Sanjay move along a circular path of length 1.2 km with speeds of 6 km/h, 8 km/h and 9 km/h respectively. Ajay and Vijay move in the same direction but Sanjay move in opposite direction, if they all start at the same time and from same place. How many time will Ajay and Sanjay meets anywhere on the path by the time Ajay and Vijay for the first time anywhere on the path?

(a) 6 times

(b) 7 times

(c) 8 times

(d) 9 times

Which of the following is the correct order of size of the given species? 

(a) I > I^– > I⁺  

(b) I⁺ > I^– > I

(c) I > I⁺ > I^–

(d) I^– > I > I⁺

Plants, which produce characteristic pneumatophores and show vivipary belong to 

(a) mesophytes 

(b) halophytes 

(c) psammophytes 

(d) hydrophytes

A positive integer K is said to be good if there exists a partition of {1, 2, 3,….,20} K in to disjoint proper subsets such that the sum of the numbers in each subset of the partition is K. Then good number are there 

(a) 5 

(b) 6 

(c) 7 

(d) 4

The number of electrons required to reduce one molecule of oxygen to water during mitochondrial oxidation is

(a) 4

(b) 3

(c) 2

(d) 1

Proteins P, Q, and R are associated with intact organellar membrane in a cell. If the intact organellel is treated with a high ionic strength buffer, only protein R remained associated with the membrane fraction. Based on this, one could conclude that

(A)  P and Q are peripheral membrane proteins.  

(B)  R is a peripheral membrane protein.

(C)  P and Q are integral membrane bound proteins.

(D)   P is peripheral and Q is integral membrane protein. 

Thermal expansion of a solid is due to the

(A)  symmetric characteristic of the inter atomic potential energy curve of the solid

(B)  asymmetric characteristic of the inter atomic potential energy curve of the solid

(C)  double well nature of the inter-atomic potential energy curve of the solid

(D)  Rotational motion of the atoms of the solid  

A girl brings a positively charged rod near a thin neutral stream of water from a tap. She observes that the water stream bends towards her. Instead, if she were to bring a negatively charged rod near to the stream, it will

(a) bend in the same direction

(b) bend in the opposite direction

(c) not bend at all

(d) bend in the opposite direction above and below the rod