Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R): 

Assertion (A):	Electrical synapses are faster but rare in human beings.
Reason (R):	Electrical synapses contain gap junctions that allow electric current to flow directly from one neuron to another.

In the light of the above statements choose the correct answer from the options given below:

1.	Both (A) and (R) are true and (R) is the correct explanation of (A).
2.	Both (A) and (R) are true but (R) is not the correct explanation of (A).
3.	(A) is true but (R) is false.
4.	Both (A) and (R) are false.

Assertion: Sympathetic and parasympathetic divisions bring about opposite effects in organs innervated by them.
Reason: The preganglionic neurons of the two subdivisions release different neurotrnasmitters.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false

Assertion: Nerve gas Sarin and agricultural insecticide Parathion can cause severe spastic paralysis in humans.
Reason: Sarin and Parathion act as inhibitors of the enzyme choline acetyl transferase.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

Assertion: Nicotine binds directly to the receptors on the postsynaptic neurons of the brain.
Reason: Any chemical occurring in the brain will naturally have receptors on the neurons.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R): 

 
In the light of the above statements choose the correct answer from the options given below:

Assertion: A person with damage to Broca’s speech area in the left hemisphere may not be able to speak but may retain the ability to sing.
Reason: The left hemisphere is the dominant hemisphere for language in majority of the human beings.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

Assertion: Spinal cord segments do not correspond to vertebral segments in the adult, particularly in the lower spinal cord.
Reason: The vertebral column grows longer than the spinal cord.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R): 

In the light of the above statements choose the correct answer from the options given below:

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R): 

In the light of the above statements choose the correct answer from the options given below:

Assertion: The stapes, though the smallest bone in the body, is able to vibrate the perilymph in the vestibular duct.
Reason: The foot plate of stapes is much smaller than the tympanic membrane.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false