Whorled, simple leaves with reticulate venation are present in:
1. | Alstonia | 2. | Calotropis |
3. | Neem | 4. | China Rose |
Which one of the following is a xerophytic plant in which the stem is modified into a flat green and succulent structure:
1. Casuarina
2. Hydrilla
3. Acacia
4. Opuntia
Aestivation of petals in the flower of cotton is correctly shown in:
1. | 2. | ||
3. | 4. |
The correct floral formula of soybean is:
1. | % |
2. | % |
3. | % |
4. | % |
Consider the following four statements A, B, C & D and select the right option for two correct statements:
(A) | In vexillary aestivation, the large posterior petal is called standard, two lateral ones are wings and two small anterior petals are termed keel |
(B) | The floral formula for Liliaceae is |
(C) | In pea flower the stamens are monadelphous |
(D) | The floral formula for Solanaceae is |
The correct statements are:
1. A and B
2. B and C
3. C and D
4. A and C
Which floral family has (9) + 1 arrangement of anthers in the androecium?
1. Malvaceae
2. Rutaceae
3. Fabaceae
4. Caesalpiniaceae
In a longitudinal section of a root, starting from the tip upward, the four zones occur in the following order:
1. | Root cap, cell division, cell maturation, cell enlargement |
2. | Cell division, cell enlargement, cell maturation, root cap |
3. | Cell division, cell maturation, cell enlargement, root cap |
4. | Root cap, cell division, cell enlargement, cell maturation |
Pneumatophores are found in:
1. The vegetation is found in marshy and saline lake
2. The vegetation is found in saline soil
3. Xerophytes
4. Epiphytes
The aleurone layer in maize grain is especially rich in:
1. | Proteins | 2. | Starch |
3. | Lipids | 4. | Auxins |
Tetradynamous conditions occur in:
1. Cruciferae
2. Malvaceae
3. Solanaceae
4. Liliaceae