Botany and Plant Science

Ectomycorrhizas are further differentiated from other mycorrhizas by the formation of a dense hyphal sheath, known as the mantle, surrounding the root surface. The sheathing mantle can be up to 40 Hm thick, with hyphae extending soil. These associations are formed predominantly on the fine root tips of the host distributed unevenly throughout the root surface.

Mycorrhiza involves a symbiotic association between fungi and plant roots. In most cases, the fungal hyphae penetrate the root cortex but do not enter the vascular cylinder or the root apex.

Resin canals in Pinus are lysigenous or schizogenous in origin, but in the context of botanical anatomy, they are typically described as being formed by the separation of secretory cells (schizogenous).

Hydathodes release water in the form of small water droplets and hence are responsible for guttation.

Guttation is the loss of water in the form of the dilute solution which consists salts and minerals through stomata or hydathodes. Guttation occurs under the influence of root pressure when soil is well watered but humidity is high consequently transpiration is less.

Guttation is the process of loss of water from the surface of leaves in the form of water droplets. The margins of leaves contain opening called as hydathodes from where the guttation takes place.

Emasculation involves the removal of stamens from bisexual flowers of the female parents in order to avoid self-pollination in these flowers. It is done before the anthers are mature. If in a condition the female parent bears bisexual flowers, then elimination of anthers from the flower bud before the anther matures. This step is known as emasculation.  

Emasculation is the process of removing the anthers from a bisexual flower to prevent self-pollination, ensuring that the flower can only be fertilized by the desired pollen during hybridization.

In monocot seeds, the coleorhiza protects the radicle, and the coleoptile protects the plumule during germination.

Dicotylodoneae is a group of angiosperms that are characterized by tap root system, vascular tissue present in columns, posses xylem vessels, leaves have reticulate venation, stem with open collateral vascular bundles arranged in a ring and seed are covered by fruits and show secondary growth.

Perisperm differs from endosperm in being a diploid tissue. Endosperm is a tissue produced inside the seeds of most flowering plants around the time of fertilization. It surrounds the embryo and provides nutrition in the form of starch, though it can also contain oils and protein. These are typically triploid but can vary widely from diploid. Endosperm that is diploid, resulting from the fusion of a pollen nucleus with one, rather than two, maternal nuclei.They are both nutritive layers in a seed. Perisperm develops from the nucellus of the seed and the endosperm develops when the sperm cell fuses with two haploid polar nuclei (contained in the central cell) in the centre of the embryo sac (or ovule). The resulting cell is triploid (3n). This triploid cell divides through mitosis and forms the endosperm, a nutrient-rich tissue, inside the seed. 

Legume or pod fruits are monocarpellary (from monomerous gynoecium), generally multiseeded, hypogynous flower, marginal placentation. Dehiscence is on two sides (ventral and dorsal) from the apex of the fruit. Characteristic for Fabaceae. Monocarpillary means ovary with one carpel. The legume fruits do not develops from inferior ovary, bicarpillary ovary and multicarpillary ovary. 
Thus, the correct answer is option B.

Trichoblasts are specialized epidermal cells (root hairs) found at the periphery of the root, while other structures like fusiform cells or tyloses are located deeper within the plant axis.

A seed contains the embryo (new generation) and the seed coat/endosperm (remnants of the parent plant/previous generation), effectively housing two generations.