Assertion (A) : Scientists found activation in pre-frontal cortex neurons involved in planning motor actions whenever a monkey in their experiment saw a picture of a peanut.
Reason (R) : The mirror neurons respond to actions that the animal plans and performs itself and also to the same actions performed by others. These are likely to play a role in learning by observation.
Codes :
The assertion states that scientists observed activation in pre-frontal cortex neurons involved in planning motor actions when a monkey saw a picture of a peanut. This aligns with neurological principles where visual stimuli associated with potential actions (like eating a peanut) can activate neural circuits responsible for planning those actions.
The reason describes mirror neurons. These neurons are known to activate both when an individual performs an action and when they observe the same action being performed by others. Their role in understanding actions and facilitating learning through observation is a key concept in neuroscience.
Assertion (A) describes a specific observation: seeing a peanut picture leading to motor action planning activation. Reason (R) provides a general mechanism: mirror neurons linking observed actions to motor systems and learning.
Therefore, the function of mirror neurons as described in Reason (R) provides a plausible explanation for the observed neural activation in Assertion (A).
Both Assertion (A) and Reason (R) are factually correct statements. Furthermore, the explanation provided in Reason (R) about mirror neurons directly supports and explains the observation detailed in Assertion (A).
Which one of the following synaptic vesicles (as observed under transmission electron microscope) contains catecholamines?
Blood hemostasis is the interplay of several intrinsic and extrinsic factors. Deficiency of some of the blood clotting factors and their clinical manifestations are listed below.
Factors | Manifestations | ||
A. | V | i. | Hageman trait |
B. | VII | ii. | Hypoconvertemia |
C. | IX | iii. | Hemophilia B |
D. | XII | iv. | Parahemophilia |
Which one of the following options represents all correct matches?
Columns X and Y list the terms associated with gametogenesis and fertilisation.
Column X | Column Y | ||
A | Primordial germ cells | i | Luteinizing hormone |
B | Dictyate resting stage | ii | Posterior epiblast |
C | Sodium channels | iii. | Male pronuclei |
D | Protamines | iv | Block polyspermy |
Which one of the following options represents all correct matches?
Nephrons are structural and functional units of the kidneys. Certain statements are made below about structure and function of a nephron.
A. P cells of the collecting duct are involved in Na+ reabsorption and vasopressin-stimulated water reabsorption.
B. P cells of the collecting duct are concerned with acid secretion and HCO3- transport.
C. I cells of the collecting duct are concerned with acid secretion and HCO3- transport.
D. The total length of the nephrons including collecting ducts ranges from 45 to 65 mm.
Which one of the following options has all correct statements?
The non-ciliated cuboidal epithelial cells in bronchioles that secrete important defense markers are called