What are Singer and Nicolson known for?

(a) One-gene-one-enzyme hypothesis

(b) Plasma membrane modifications

(c) Fluid-mosaic model of plasma membrane

(d) Structure of DNA

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


What is a plasmid ?

(a) Bacterial, linear, dsDNA

(b) Extra chromosomal linear RNA

(c) Extra chromosomal circular dsDNA

(d) Autonomously replicating circular RNA

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Cell theory was proposed by

(a) a botanist

(b) a zoologist

(c) a botanist and a zoologist

(d) a psychologist.

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


The microscope usually used for seeing living cells or tissues is

(a) compound microscope

(b) electron microscope

(c) phase contrast microscope

(d) light microscope.

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Which of the following organelles contain DNA?

(i) Mitochondria (ii) Chloroplasts (iii) Golgi bodies (iv) Ribosomes

(a) (i) and (ii)

(b) (ii) and (iii)

(c) (i) only

(d) (iv) only.

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Chromatin is made up of:

(a) DNA and protein

(b) DNA and histone

(c) DNA, RNA, protein

(d) RNA, histone and oil bodies.

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Which one of the following is correct for the transmembrane proteins in lipid bilayer of plasma membrane?

(a) They are absent in animal cells.

(b) They act as channel proteins.

(c) They are absent in plant cells.

(d) They are only externally located

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Identify the accurate explanation of mesosome.

It is

(a) a specialised structure of prokaryotic cell formed by extension of plasma membrane into the cytoplasm

(b) the middle layer of the prokaryotic cell wall

(c) the organelle of eukaryotic cell which helps in lipid synthesis

(d) the middle layer of eukaryotic cell wall.

Please attempt this question first.

Difficulty Level:


Mitochondria and chloroplast are believed to be bacterial endosymbiont because

I. they have self nucleic acid i.e., circular ds, DNA and RNAs

II. 70s ribosomes

III. their membrane resembles that of bacteria

IV. ETS and ATP forming machinery is present.

(a) I and II

(b) I, II and III

(c) All of these

(d) I and IV

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


If a biochemical analysis of mitochondria has to be done, the best procedure would be

(a) select cells which have a larger number of mitochondria

(b) plasmolyse the cell and filter out the mixture and take the debris

(c) grind the cells and filter out the mixture and take the debris

(d) subject the cell to cell fractionation (centrifuge) and obtain mitochondria

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level: