(A)
P-4
Q-3
R-5
S-2

(B)
P-2
Q-3
R-6
S-1

(C)
P-4
Q-2
R-1
S-3

(D)
P-3
Q-2
R-4
S-5

Correct Answer

✅ Option (C)

Detailed Explanation

Seed storage proteins are reserve proteins accumulated in seeds to support germination and early seedling growth. Each plant species has characteristic storage proteins.

P. Rape seed → Napin (4)

• Rapeseed (Brassica spp.) stores proteins mainly as napin and cruciferin.

• Napin is a low-molecular-weight albumin.

• ✔ Correct match: P-4

Q. Pea → Vicillin (2)

• Pea seeds store proteins primarily as vicillin and legumin.

• Vicillin is a globulin-type storage protein.

• ✔ Correct match: Q-2

R. Sorghum → Kafirin (1)

• Sorghum seeds contain kafirin, a prolamin protein.

• Kafirin is analogous to zein in maize.

• ✔ Correct match: R-1

S. Wheat → Gliadin (3)

• Wheat storage proteins are gliadin and glutenin.

• Gliadin is responsible for dough viscosity and elasticity.

• ✔ Correct match: S-3

Why Option (C) Is Correct

Option (C) correctly matches all four plants with their authentic and well-established seed storage proteins.
All other options contain at least one incorrect pairing.

Why Other Options Are Incorrect (Quick Check)

• Option (A): Wheat is incorrectly matched with vicillin

• Option (B): Sorghum and wheat proteins are wrongly assigned

• Option (D): Rapeseed and sorghum protein matches are incorrect

Quick Exam Memory Tips

• Rapeseed → Napin

• Pea → Vicillin

• Sorghum → Kafirin

• Wheat → Gliadin

Exam Relevance

🔹 Frequently asked in CSIR-NET Life Sciences
🔹 Important for plant physiology & seed biology
🔹 High-yield match-the-following MCQs