List of top Questions asked in IIT JAM BT

Eutrophication refers to an aging process from a
T cells and B cells are
In humans, the testis temperature is maintained below the core body temperature with the help of
Protein that helps other proteins to fold correctly is
The CORRECT sequence of phases during mitosis is
In viruses, capsids are made up of
Deficiency of the enzyme phenylalanine hydroxylase causes Phenylketonuria. Phenylalanine hydroxylase converts phenylalanine to
Let \( \mathbf{a} = 4i - 2j + 6k \) and \( \mathbf{b} = 7i + j - 12k \). If \( \mathbf{a} \times \mathbf{b} = \alpha i + \beta j + \gamma k \), then the value of \( \alpha + \beta + \gamma \) equals .............

The standard emf of a cell (in V) involving the reaction, 

A schematic representation of restriction fragment length polymorphism (RFLP) analysis of a sample population is shown below. The number of people exhibiting a given pattern is indicated above the lanes. 

Calculate the frequency of the 6.5 kb allele. [Correct to two decimal places] 
 

Heterozygous female fruit flies with gray body and purple eyes were mated with homozygous males with black body and red eyes. The number of offspring obtained and their phenotypes are shown below: 

Calculate the recombination frequency. 
 

Let \( \mathbb{N} \) be the set of natural numbers and \( f : \mathbb{N} \to \mathbb{N} \) be defined by 

Let \( f^n(x) \) denote the \( n \)-fold composition of \( f(x) \). What is the smallest integer \( n \) such that \( f^n(13) = 1 \)? 
 

The characteristic oxygen binding profile of hemoglobin shown below arises due to the ......... 

H\(_2\) reacts with trans-(Ph\(_3\))\(_2\)Ir(CO)Cl to primarily produce .......... 

Match the entries in Group I with entries in Group II 

The following reaction is an example of ............ 

Match the entries in Group I with the entries in Group II 

Which one of the following figures represents the correct sequence of phases in adult eukaryotic cell cycle? 

Two identical, infinite conducting plates are kept parallel to each other and are separated by a distance \( d \). The uniform charge densities on the plates are \( +\sigma \) and \( -\sigma \). The electric field at a point between the two plates is \( E = n \left( \frac{\sigma}{\epsilon_0} \right) \), where \( n \) is ........
The concentration of NaCl (in mM) formed at the stoichiometric equivalence point when 10 mL of 0.1 M HCl solution is titrated with 0.2 M NaOH solution is ............
An infinitely long solenoid of radius \( r \) and number of turns per unit length \( n \) carries a steady current \( I \). The ratio of the magnetic fields at a point on the axis of the solenoid to a point \( r/2 \) from the axis is ..............
The total number of multiplet peaks in the \( ^1 \)H NMR spectrum of 1,3,5-tri-isopropylbenzene in CDCl\(_3\) is ..........
The value of \( \int_0^\pi x \sin x \, dx \) is .......
Phosphoglucoisomerase catalyzes the following reaction: \[ \text{Glu-6-P} \rightleftharpoons \text{Fru-6-P} \] If 0.05% of the original concentration of Glu-6-P remains at equilibrium, then the equilibrium constant of this reaction is ............
In a bacterium, a mutation resulted in an increase of \( K_s \) (substrate-specific constant) for ammonium from 50 \( \mu M \) to 5000 \( \mu M \) without affecting \( \mu_{max} \). The specific growth rate (\( \mu \)) of the mutant growing on 0.5 mM ammonium in the medium decreases by a factor of ..........