Match List I with List II :

List I (Placentation)	List II (Example)
A. Marginal	I. Mustard
B. Axile	II. Pea
C. Parietal	III. Marigold
D. Basal	IV. Lemon

Choose the correct answer from the options given below :

Core Logic

In a racemose type of inflorescence, the main axis (peduncle) continues to grow indefinitely and does NOT terminate in a flower. The flowers are borne laterally in an acropetal succession (older flowers at the base, newer flowers near the growing apex).

Conversely, in a cymose inflorescence, the main axis terminates in a flower (limited growth), and flowers exhibit basipetal succession.

Step 1: Final Conclusion

Thus, the accurate characteristic for racemose inflorescence is that flowers are borne in an acropetal succession.

Pattern Recognition

Racemose = Racing (keeps growing) = Acropetal (apex keeps moving up). Cymose = Capped (stops growing at apex flower) = Basipetal.

Chapter Mix

Class 11 Biology: Morphology of Flowering Plants

Core Logic

The Solanaceae family (potato family) is characterized by:

• Actinomorphic, bisexual flowers.
• Calyx (K): 5 sepals, united (gamosepalous) → K(5)$K_{(5)}$
• Corolla (C): 5 petals, united (gamopetalous) → C(5)$C_{(5)}$
• Androecium (A): 5 stamens, epipetalous → A₅$A_5$ (with an arc connecting C and A).
• Gynoecium (G): Bicarpellary, syncarpous, superior ovary → G(2)$\underline{G}_{(2)}$

Note: The official option (1) in the exam paper accidentally omitted the actinomorphic symbol $\oplus$, but perfectly represents the united calyx, united corolla, and syncarpous ovary of Solanaceae which distinguishing it from the other choices.

Step 1: Final Conclusion

The formula ♀ K(5) C(5) A₅ G(2)$\text{♀} \ K_{(5)} \ C_{(5)} \ A_{5} \ G_{(2)}$ correctly shows the united sepals and petals typical of Solanaceae.

Pattern Recognition

Solanaceae is famous for "(5)" across both calyx and corolla (gamosepalous & gamopetalous) and a bicarpellary syncarpous ovary "(2)".

Chapter Mix

Class 11 Biology: Morphology of Flowering Plants