Identify the incorrectly matched pair:
Cell | Ploidy | |
1. | Cells of nucellus | Diploid |
2. | Megaspore mother cell | Haploid |
3. | Functional megaspore | Haploid |
4. | Cells of female gametophyte | haploid |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
In angiosperms:
1. Pollen grains are motile but the egg cell is non-motile.
2. Pollen grains are non-motile but the egg cell is motile.
3. Both pollen grain and egg cell are non-motile.
4. Both pollen grain and egg cell are motile.
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Yucca plant is pollinated by:
1. | Gecko lizard | 2. | Honey bees |
3. | Pronuba moth | 4. | Wind |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
The body of the ovule fuses with the funicle in the region called:
1. | Chalaza |
2. | Micropyle |
3. | Hilum |
4. | Nucellus |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Division of functional megaspore can be described as:
1. | Three free nuclear mitotic divisions. |
2. | One meiotic and two mitotic divisions, all free nuclear. |
3. | Three cytoplasmic mitotic divisions. |
4. | One meiotic and two mitotic divisions, meiotic being cytoplasmic and mitotic being free nuclear. |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Pollen tube, after reaching the ovary, enters the ovule through _______ and then enters one of the _____________ through filiform apparatus.
1. | Chalaza; Synergids | 2. | Micropyle; Antipodals |
3. | Micropyle; Synergids | 4. | Chalaza; Antipodals |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
The correct sequence of layers in the wall of an anther from outside to inside is:
1. | Tapetum – Middle Layers – Endothecium – Epidermis |
2. | Epidermis – Endothecium – Tapetum – Middle layers |
3. | Epidermis – Endothecium – Middle layers – Tapetum |
4. | Tapetum – Endothecium – Middle layers – Epidermis |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Dioecy in flowering plants prevents:
1. | Autogamy but not Geitonogamy |
2. | Geitonogamy but not Autogamy |
3. | Both Geitonogamy and Autogamy |
4. | Neither Geitonogamy nor Autogamy |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Identify the plant pollinated by insects that, in many species, emit a scent of decaying flesh from the inflorescence, in order to attract insects:
1. | Yucca | 2. | Amorphophallus |
3. | Zostera | 4. | Vallisneria |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Filiform apparatus is associated with _____ and helps in _____________.
1. Syngergids; Nourishment of egg cells
2. Synergids; Guiding the pollen tube
3. Antipodals; Nourishment of egg cells
4. Antipodals; Guiding the pollen tube
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.