List of top Questions asked in IIT JAM BT- 2021

When the molecular weight of human immunoglobulin light chain is 24 kDa, the total molecular weight of human IgG is ______ kDa.
The distance between the parallel lines $2x + 5y = 7$ and $2x + 5y = 15$ is ______ (rounded off to 2 decimals).
The number of triplet codon(s) for methionine is _______.
A charged particle accelerated by a potential $V$ moves in a circular path with velocity $v$ in a uniform magnetic field $B$ perpendicular to motion. Which of the following is/are correct if the value of $V$ is increased?
Which of the following is/are involved in the initiation of DNA replication?
The amount of hydrogen required to reduce 30 g of 2-butene is _______ g (rounded off to 2 decimals).
For a gene present on human chromosome 4, the maximum number of alleles that may be detected by sequencing the genome of 5 males and 10 females is _______.
Which of the following pairs is/are analogous structures?
1.45 g of sucrose (C$_{12}$H$_{22}$O$_{11}$) is dissolved in 30.0 mL of water. Molality (rounded off to 3 decimals) of the resulting solution is _______ m.
Which of the following is/are common to both prokaryotic and eukaryotic gene expression?
Which of the following molecular genetic technique(s) is/are used in forensic science?
Which of the following is/are TRUE about the electron carrier, ubiquinone (coenzyme Q)?
Infrared (IR) spectroscopy is used for determining certain aspects of the structure of organic compounds. Which of the following statement(s) is/are FALSE?
The difference between mitosis and meiosis I is
Cyclic AMP (cAMP) acts as a second messenger for which of the following primary signaling molecule(s)?
The lack of linear correlation between the genome sizes and genetic complexities among various species is known as
In plants, the ovules are attached to the ovary by
In mammals, females have two X chromosomes and males have one X chromosome. Equal expression of X-chromosome genes in both sexes is ensured by
A stationary enemy ship is docked in the sea at a distance of 10 km from the coastline. A gun located at the sea level on the coastline can fire projectiles at a velocity of 120 m/s. What is the angle (in degrees) above the horizontal at which the gun must fire to hit the ship? [g = 9.8 m/s$^2$]
What is the significance of the isomerization of glucose 6-phosphate to fructose 6-phosphate for the progression of glycolysis?
Which one of the following processes emerged earliest during the course of evolution?
Which one of the following microscopic techniques provides a 3-dimensional perspective of live, unstained and transparent specimens obtained from the wild?
What is the role of bile salts in the mammalian digestive system?
Presence of which one of the following in the urine indicates pregnancy in human?
Which one of the following features/properties does glucose acquire through intramolecular hemiacetal formation?