NEET BIOLOGY

Detailed explanation-1: -Gymnosperm plants have naked seeds, which means that their seeds are not covered within a fruit. The plant body consists of intermediate to tall shrubs and trees. The gigantic redwood tree that is Sequoia is among the world’s tallest trees.

Detailed explanation-2: -Gymnosperms are heterosporous in nature and produce both male and female cones. The cones give rise to spores that participate in fertilization. The female cone produces megaspores, the female gametophytes while the male cones give rise to pollen grains, the microspore male gametophytes.

Detailed explanation-3: -A heterosporous life history occurs in some pteridophytes and in all seed plants. It is characterized by morphologically dissimilar spores produced from two types of sporangia: microspores, or male spores, and megaspores (macrospores), or female spores.