The genetic material of a bacterium is located in the: MCQ with Answer and Explanation

Explanation:
Apical dominance is the phenomenon where the main central stem (apical bud) grows more strongly than the side stems (lateral buds). This is primarily controlled by auxin (specifically IAA), which is produced at the shoot apex and moves downwards, inhibiting the growth of lateral buds. Removal of the apical bud promotes lateral branching.

Explanation:
P700, a specialized chlorophyll a, is the reaction center of photosystem I, absorbing far-red light (700 nm). P680 is the reaction center of photosystem II. Chlorophyll b and xanthophyll are accessory pigments.

Explanation:
In the apoplast pathway, water moves through cell walls and intercellular spaces without crossing membranes. However, at the endodermis, the Casparian strip (suberin deposition) blocks apoplastic movement, forcing water to enter the symplast (via plasma membrane). Thus, apoplastic movement stops at the endodermis. This ensures selective uptake of minerals.