Topic

Cell Biology PYQs

27 previous year questions across 17 subtopics · answers and explanations included

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One question at a time, instant feedback, score at the end.

Showing 20 questions · Medium

1

In eukaryotes, nucleosomes comprise of which one of the following histones?

MediumChromatin & Nucleosome StructureView answer

2

Primary cilia biogenesis typically starts at the

MediumView answer

3

During signal transduction, one molecule of phosphatidylinositol 4,5-bisphosphate (PIP2) is cleaved into one molecule each of inositol triphosphate (IP3) and diacylglycerol (DAG) by the enzyme:

MediumSignal Transduction - Phospholipase C PathwayView answer

4

Gap junctions are absent in:

MediumCell Junctions & Intercellular CommunicationView answer

5

Which one of the following acts as a linker histone?

MediumHistone Proteins & ChromatinView answer

6

Green Fluorescent Protein (GFP) emits green light due to the presence of a:

MediumFluorescent Proteins & Post-Translational ModificationsView answer

7

How many times is the Ostrich egg bigger than the mitochondrion? [Image]

MediumCell & Organelle Size ComparisonView answer

8

Proteins are glycosylated in the endoplasmic reticulum. In the final structures, the glycan moieties are typically present:

MediumProtein Glycosylation & ER ProcessingView answer

9

What is Endoreduplication?

MediumView answer

10

A specialized histone associated with the centromeric region of the chromosome is:

MediumChromatin & Histone VariantsView answer

11

A conventional light microscope allows us to magnify cells up to 1000 times and to resolve details as small as ______________.

MediumMicroscopy & ResolutionView answer

12

Which one of the following is NOT a major checkpoint in the cell division cycle of eukaryotic cell?

MediumCell Cycle CheckpointsView answer

13

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Histones bind to DNA with high affinity. Reason R: Histones are small proteins rich in valine and isoleucine residues. In the light of the…

MediumHistone-DNA InteractionsView answer

14

The color of emitted light of Quantum dots used in fluorescence microscopy depend on:

MediumFluorescence Microscopy & Quantum DotsView answer

15

Which of the following statements are correct? A. Lipid bilayer lacking proteins is highly impermeable to all the charged molecules. B. Channels have specific binding pockets for the solute molecules they allow to pass. C. Transporters allow solutes to cross…

MediumMembrane Transport & Ion ChannelsView answer

16

The animal embryonic stem cells that can differentiate into any embryonic cell type are known as:

MediumStem Cells & PluripotencyView answer

17

The ligand binding domain of a ligand gated channel (LGC) has a serine residue, phosphorylation of which is essential for ligand binding. By site directed mutagenesis it was replaced by aspartic acid. The likely consequences will be:

MediumLigand-Gated Ion Channels & Signal TransductionView answer

18

Which of the following organelle is NOT a site for Reactive Oxygen Species (ROS) generation?

MediumView answer

19

Which one of the following cell separation techniques allows cells from different stages of the cell cycle to be separated simultaneously with minimal perturbation to their physiology?

MediumCell Cycle Analysis & Flow CytometryView answer

20

Choose the correct statement in respect to metazoan development:

MediumMetazoan Development & Cell DifferentiationView answer