List of top Questions asked in IIT JAM BT

Given the following sets:
𝐴 = {2, 4, 6, 8, 10, 12}
𝐵 = {8, 10, 12, 14, 16, 18}
𝐶 = {7, 8, 9, 10 11, 12, 13}
(𝐴 ∩ 𝐵) ∪ (𝐵 ∩ 𝐶) is

Rain is falling vertically with a speed of 40 $m s^{-1}$. Wind starts blowing with a speed of 16 $m s^{-1}$ in the west to east direction. How should a person, who is standing, hold his umbrella to avoid getting wet?

Which one of the following statements about the G1 checkpoint of eukaryotic cell division cycle is INCORRECT?

Arrange the following elements in increasing order of their electronegativity according to the Pauling scale
C, Na, Be and Br

Determine the correctness or otherwise of the following Assertion [a] and the Reason [r].
Assertion [a]: Nitric oxide is involved in transient paracrine and autocrine signaling.
Reason [r]: Nitric oxide is highly reactive, with a lifetime of few seconds, yet can diffuse freely across membranes

Which one of the following is NOT a plant vascular tissue?

In mice, a trait is determined by a dominant allele Y and recessive allele y. What proportion of the offspring from a YY × yy cross is expected to be homozygous recessive in F1 generation?

A growing shoot of a germinating seedling encounters an underground obstacle. Which one of the following hormones elicits ‘triple response’ to the underground obstacle?

Match the molecules in Group I with the type of bonds present in them, in Group II

Group I	Group II
P) NaCl	1) Coordination bond
Q) $H_2$	2) Polar covalent bond
R) $Pd-P$ bond in $Pd(PPh_3)_4	3) Covalent bond
S) $C-Cl$ bond in $CH_3Cl $	4) Ionic bond

Which one of the following pairs of antibodies contains ‘J-chain’ in their multimeric form?

What is the splitting pattern of proton $H^{a}$ of the following compound in its $^1H NMR$ spectrum?

Which of the following statement(s) is/are correct about telophase?

Which one of the following statements is correct about solute transport across membranes?

The characteristic morphological change(s) in cells undergoing apoptosis is/are

Match the type of DNA repair mechanism in Group I with the enzyme(s) involved in Group II

Group I	Group II
P) Mismatch repair	1) DNA glycosylase
Q) Base excision repair	2) UvrA, UvrB, UvrC and UvrD
R) Nucleotide excision repair	3) RecA
S) Double strand break repair	4) MutL, MutS and MutH

A species of fish living in a lake are separated by drying up of the lake into two separate lakes. After several hundreds of years of separation, the two groups are unable to mate. These groups are now considered to be different _____.

Tetracycline binds to the

Which of the following compound(s) is/are aromatic?

In the ‘Southern blot’ technique, which of the following reagents is used to detect the presence of a desired DNA fragment?

The pedigree given below shows individuals affected (shaded circles/rectangles) by chronic hypertension. Assuming 100% penetrance, the inheritance of this trait is

Which of the following statement(s) is/are correct for the following compound?

Which one of the following statements about photoproteins in plants is INCORRECT?

Which of the following is/are essential feature(s) of high-fidelity DNA polymerases used in polymerase chain reaction?

Match the microorganisms in Group I with the human disease in Group II

Group I	Group II
P) Treponema pallidum	1) Sleeping sickness
Q) Trypanosoma cruzi	2) Whooping cough
R) Trypanosoma gambiense	3) Chagas disease
S) Bordetella pertussis	4) Syphilis

Which of the following option(s) represent(s) the evolutionary relationship between the bird and bat wings as structures for flying?