Match List-I with List-II: List-I (Type of Placenta) (A)... | Agrigyan

In Somatic Cell Nuclear Transfer (SCNT), an enucleated oocyte receives a nucleus from a somatic cell of a donor animal. Because the donor nucleus contains the complete genetic complement including sex chromosomes (XX or XY), the cloned individual is genetically identical to the nuclear donor, and therefore its sex is identical to the sex of the somatic cell donor.

Option analysis:

• Incorrect because the sex is fully predetermined by the donor's sex chromosomes.
• Correct. Sex depends entirely on the sex of the somatic cell nuclear donor.
• Incorrect because cloning from a male donor produces a male offspring.
• Incorrect because culture medium factors cannot alter chromosomal sex determination.

Matching animal behaviours and physiological conditions:

• Gular fluttering: Rapid vibration of the throat skin/pouch used for evaporative heat loss in Birds -> (IV).
• Brisket disease (High mountain disease / cor pulmonale): Right heart failure due to hypoxia-induced pulmonary hypertension in Cattle at high altitudes -> (III).
• Concaveation: Induction of maternal behavior in virgin females through continuous exposure to young animals, well-studied in Sheep and laboratory animals -> (I).
• Rooting: Natural exploratory digging behavior using the snout in Pigs -> (II).
  Matching: (A)-(IV), (B)-(III), (C)-(I), (D)-(II).
  
  Option analysis:
• Incorrect matching.
• Incorrect matching.
• Incorrect matching.
• Correct. (A)-(IV), (B)-(III), (C)-(I), (D)-(II).

Standard international nomenclature for blood coagulation factors:

• Factor IX is known as Christmas factor (deficiency causes Hemophilia B) -> (III).
• Factor X is known as Stuart factor or Stuart-Prower factor -> (II).
• Factor XI is known as Plasma Thromboplastin Antecedent (PTA) -> (IV).
• Factor XII is known as Hageman factor -> (I).
  Matching: (A)-(III), (B)-(II), (C)-(IV), (D)-(I).
  
  Option analysis:
• Incorrect matching.
• Incorrect matching.
• Correct. (A)-(III), (B)-(II), (C)-(IV), (D)-(I).
• Incorrect matching.

Statement (I) is correct: Electrophysiology of the heart categorizes action potentials into fast-response action potentials (found in atrial and ventricular myocytes and Purkinje fibers, mediated by voltage-gated $Na^+$ channels) and slow-response action potentials (found in the SA node and AV node pacemakers, mediated primarily by $Ca^{2+}$ channels).
Statement (II) is incorrect: Highest blood pressure occurs in the aorta and large systemic arteries during ventricular systole; veins have the lowest pressure in the systemic circulation ($2\text{ to }10\text{ mmHg}$), acting as low-pressure capacitance reservoirs.

Option analysis:

• Incorrect because Statement II is false.
• Incorrect because Statement I is correct.
• Correct. Statement (I) is correct but Statement (II) is incorrect.
• Incorrect because Statement I is true and Statement II is false.