AP BIOLOGY

Detailed explanation-1: -However, if the shoot apical meristem is removed, by pruning for example, then the axillary meristems will grow into new flowering shoots and branches [fig. 9.9]. This phenomenon by which the growth of apical meristems is suppressed by the shoot apical meristem is called apical dominance.

Detailed explanation-2: -This is because the apical meristematic tissues essential for their growth is present on tips. If the tips are removed, the roots can’t grow.

Detailed explanation-3: -Both the apical and intercalary meristems are referred to as “primary” meristems since they develop early in a plant’s life and contribute to the building of the main plant body.

Detailed explanation-4: -Meristems are classified by their location in the plant as apical (located at root and shoot tips), lateral (in the vascular and cork cambia), and intercalary (at internodes, or stem regions between the places at which leaves attach, and leaf bases, especially of certain monocotyledons-e.g., grasses).