List of top Biology Questions asked in Indian Institute Of Technology Joint Admission Test for MSc

Which of the following method(s) is/are used to estimate protein concentration?

Which of the following is/are example(s) of a lotic ecosystem?

Competition between two populations in an ecosystem is

Which one of the following immunoglobulins crosses the human placenta?

Which one of the following is a simple tissue system in plants?

Metabolic acidosis is associated with decreased plasma level of

Determine the correctness or otherwise of the following Assertion [a] and the Reason [r].
Assertion [a]: The resolving power of a transmission electron microscope is higher than that of the light microscope.
Reason [r]: The wavelength of electrons is shorter than that of visible light.

Match the morphology in Group I with the corresponding microorganism in Group II

Group I	Group II
P. Coccus	1. Treponema
Q. Rod	2. Bacillus
R. Comma	3. Neisseria
S. Spiral	4. Vibrio

Chromosome duplication during the cell cycle occurs in

Match the terminology in Group I with the stimulus in Group II that generates growth response of plants

Group I	Group II
P. Gravitropism	1. Light
Q. Phototropism	2. Touch
R. Thigmotropism	3. Chemical
S. Chemotropism	4. Gravity

Which of the following is/are trace element(s)?

Which organelle in a eukaryotic cell is the site of electron transport chain?

In chick embryo, the ectoderm generates

Which one of the following is NOT used as a component in subunit vaccines?

Which of the following is/are true about Retrovirus?

A restriction endonuclease has a recognition site of 3 bases. Assuming random arrangement of nucleotides, the probability that this endonuclease will cut a piece of DNA is __________ (rounded off to three decimal places).

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?

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

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

Different segments of a photosynthetic filamentous alga are exposed to different wavelengths of light as shown below. After a period of time, bacteria known to migrate towards high oxygen concentration, is spread on the surface of the alga. Which region(s) of the alga will have maximum bacterial congregation?

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

The net number of molecule(s) of NADH formed from one molecule of glucose in glycolysis under aerobic conditions is/are _______.

The ∆G´ and $K´_{eq}$ values of ATP hydrolysis are -32.34 kJ $mol^{-1}$ and $4.6 x10^5$, respectively. The ∆G´ and $K´_{eq}$ values of enzymatic hydrolysis of glucose-6- phosphate to glucose and phosphate are $-13.18 kJ mol^{-1}$ and 203.8, respectively. The ∆G´ value of reaction of glucose-6-phosphate formation from glucose and ATP by hexokinase is ____ $kJ mol^{-1}$ (rounded off to 2 decimal places). [All reactions are carried out at pH 7.0 and 25 °C].

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

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