Attractants and rewards are required for:

1. Entomophily

2. Hydrophily

3. Cleistogamy

4. Anemophily

Subtopic:  Pollination & Outbreeding Devices |
 79%
NEET - 2017
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Receptor sites for neurotransmitters are present on:

1. Pre-synaptic membrane

2. Tips of axons

3. Post-synaptic membrane

4. Membrane of synaptic vesicles

Subtopic:  Nervous System | Synapse |
 78%
From NCERT
NEET - 2017
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Coconut fruit is a:

1. Berry

2. Nut

3. Capsule

4. Drupe

Subtopic:  Fruits & their Types |
 89%
From NCERT
NEET - 2017
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Adult human RBCs are enucleated. Which of the following statement(s) is/ are the most appropriate explanation for this feature? 

a. They do not need to reproduce 
b. They are somatic cells 
c. They do not metabolize 
d. All their internal space is available for oxygen transport


1. Only (a)
2. (a),(c) and (d)
3. (b) and (c)
4. Only (d)

Subtopic:  Blood: General Description & RBC: Part 1 | Blood: General Description & RBC |
 69%
NEET - 2017
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Capacitation occurs in:

1. Epididymis

2. Vas deference

3. Female reproductive tract

4. Rete testis

Subtopic:  Fertilization: Part 1 | Fertilization |
 79%
NEET - 2017
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Asymptote in a logistic growth curve is obtained when:

1. K=N

2. K>N

3. K<N

4. The value of 'r' approaches zero

Subtopic:  Population: Logistic Growth Model |
 76%
From NCERT
NEET - 2017
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Artificial selection to obtain cows yielding higher milk output represents:

1.  Directional, as it pushes the mean of the character in one direction
2.  Disruptive, as it splits the population into two, one yielding higher output and the other lower output
3.  Stabilizing followed by disruptive, as it stabilizes the population to produce higher-yielding cows
4.  Stabilizing selection, as it stabilizes this character in the population
Subtopic:  Natural Selection |
 59%
NEET - 2017
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Select the mismatch:

Column I Column II
1. Rhodospirillum Mycorrhiza
2. Anabaena Nitrogen fixer
3. Rhizobium Alfalfa
4. Frankia Alnus

Subtopic:  Nitrogen Fixation |
 75%
From NCERT
NEET - 2017
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Good vision depends on adequate intake of carotene rich food. 
Select the best option from the following statements: 

i. Vitamin A derivatives are formed from carotene 
ii. The photopigments are embedded in the membrane discs of the inner segment 
iii. Retinal is a derivative of Vitamin A 
iv. Retinal is a light-absorbing part of all the visual photopigments
 

1. (i),(iii) and (iv)

2. (i) and (iii)

3. (ii), (iii) and (iv)

4. (i) and (iv)

Subtopic:  Human Eye (OLD NCERT) | Human Eye: Adaptation (OLD NCERT) |
 59%
NEET - 2017
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The DNA fragments separated on an agarose gel can be visualized after staining with:

1. Acetocarmine

2. Aniline blue

3. Ethidium bromide

4. Bromophenol blue

Subtopic:  Separation and Isolation of DNA fragments |
 93%
From NCERT
NEET - 2017
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