List I | List II | ||
---|---|---|---|
A | Rose | I | Twisted aestivation |
B | Pea | II | Perigynous flower |
C | Cotton | III | Drupe |
D | Mango | IV | Marginal placentation |
Matching the given plants with their characteristics:
A. Rose – Exhibits perigynous flowers, where the floral organs are arranged around the ovary (A-II).
B. Pea – Shows marginal placentation, where the ovules are attached along the margin of the ovary (B-IV).
C. Cotton – Has twisted aestivation, where the petals are twisted in the bud (C-I).
D. Mango – Has a drupe as its fruit, which is a fleshy fruit with a single seed (D-III).
Thus, the correct answer is (1) A-II, B-IV, C-I, D-III.
List I | List II | ||
---|---|---|---|
A | Robert May | I | Species-Area relationship |
B | Alexander von Humboldt | II | Long term ecosystem experiment using out door plots |
C | Paul Ehrlich | III | Global species diversity at about 7 million |
D | David Tilman | IV | Rivet popper hypothesis |
The following diagram shown restriction sites in E. coli cloning vector pBR322. Find the role of ‘X’ and ‘Y’gens :