Which of the following structure is not found in a prokaryotic cell?

1. Nuclear envelope

2. Ribosome

3. Mesosome

4. Plasma membrane

Subtopic:  Prokaryotic Cell Organisation |
 87%
From NCERT
NEET - 2015
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The term "linkage" was coined by?

1. T.H. Morgan

2. T.Boveri

3. G.Mendel

4. W.Sutton

Subtopic:  Linkage |
 92%
From NCERT
NEET - 2015
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The imperfect fungi which are decomposers of litter and help in mineral cycling belong to?

1. Deuteromycetes

2. Basidiomycetes

3. Phycomycetes

4. Ascomycetes

Subtopic:  Kingdom Fungi: Deuteromycetes |
 89%
From NCERT
NEET - 2015
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Match the columns and identify the correct option. 

Column I  Column II
A. Thylakoids (i) Disc-shaped sacs in Golgi apparatus
B. Cristae (ii) Condensed structure of DNA
C. Cisternae (iii) Flat membranous sacs in stroma
D. Chromatin (iv) Infolding in mitochondria

1. A → (iv) B → (iii) C → (i) D → (ii)

2. A → (iii) B → (iv) C → (i) D → (ii)

3. A → (iii) B → (i) C → (iv) D → (ii)

4. A → (iii) B → (iv) C → (ii) D → (i)

Subtopic:  Mitochondria | Golgi Apparatus | Nucleus: Chromosomes |
 82%
From NCERT
NEET - 2015
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Select the wrong statement:

1. The viroids were discovered by D.J lvanovsky.
2. W.M. Stanley showed that viruses could be crystallized.
3. The term 'contagium vivum fluidum' was coined by MW Beijerinck.
4. Mosaic disease in tobacco and AIDS in human beings are caused by viruses.

Subtopic:  Virus, Viroids & Prions |
 82%
From NCERT
NEET - 2015
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

During biological nitrogen fixation, inactivation of nitrogenase by oxygen poisoning is prevented by?

1. Leghaemoglobin

2. Xanthophylls

3. Carotene

4. Cytochrome

Subtopic:  Nodule formation |
 93%
From NCERT
NEET - 2015
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The species confined to a particular region and not found elsewhere are termed as:

1. Keystone 2. Alien
3. Endemic 4. Rare
Subtopic:  In Situ Conservation of Biodiversity |
 86%
From NCERT
NEET - 2015
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Which one of the following hormones is not involved in sugar metabolism?

1. Cortisol

2. Aldosterone

3. Insulin

4. Glucagon

Subtopic:  Adrenal Cortex: Cortisol |
 75%
From NCERT
NEET - 2015
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Which of the following is not a function of the skeletal system?

1. Production of erythrocytes

2. Storage of minerals

3. Production of body heat

4. Locomotion

Subtopic:  Human Skeleton: Introduction, Function, Parts |
 71%
From NCERT
NEET - 2015
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Which one of the following is not applicable to RNA?

1. Complementary base pairing

2. 5' phosphoryl and 3' hydroxyl ends

3. Heterocyclic nitrogenous bases

4. Chargaff's rule

Subtopic:  DNA Double Helix |
 76%
From NCERT
NEET - 2015
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh