NEET BIOLOGY

Detailed explanation-1: -Monocots have one cotyledon. Monocot leaves tend to have parallel veins; in dicots the veins are netted. Monocot floral parts are in multiples of 3; dicots are based on 4’s or 5’s. The vascular bundles in monocots stems are scattered; in dicots they form a ring surrounding the pith.

Detailed explanation-2: -Leaf veins–In monocots, there are usually a number of major leaf veins which run parallel the length of the leaf; in dicots, there are usually numerous auxillary veins which reticulate between the major ones.

Detailed explanation-3: -Angiosperms (flowering plants) whose embryos have a single cotyledon are grouped as monocots, or monocotyledonous plants; most embryos with two cotyledons are grouped as eudicots, or eudicotyledonous plants.

Detailed explanation-4: -Gymnosperms are dicots, all angiosperms are monocots.

Detailed explanation-5: -Angiosperms have either parallel or reticulate venation with intercostal veins. On the other hand gymnosperms often have parallel venation with few branching (intercostal) veins. Extant gymnosperms such as Gnetum have strikingly angiospermous leaves.