Antipodal cells occur at the chalazal end of the ovule. Synergids are the helping cells.

Correct Option: D

Antipodal cells occur at the chalazal end of the ovule. Synergids are the helping cells.

In flowering plants, archesporium cells undergo periclinal (transverse) division to form outer primary parietal layer and inner sporogenous cells. Primary parietal wall after few more periclinal divisions form anther wall and sporogenous cells give rise to sporogenous tissue.

Correct Option: C

In flowering plants, archesporium cells undergo periclinal (transverse) division to form outer primary parietal layer and inner sporogenous cells. Primary parietal wall after few more periclinal divisions form anther wall and sporogenous cells give rise to sporogenous tissue.

In campylotropous ovule, the body is curved but the embryo sac is straight eg. Capsella. In anatropous ovule, the body of ovule is inverted and gets fused with funiculus along its whole length on one side (most of the angiosperms). In orthotropous condition, the body of ovule lies straight and upright over the funicle. e.g. Piperaceae, Polygonaceae.

Correct Option: A

In campylotropous ovule, the body is curved but the embryo sac is straight eg. Capsella. In anatropous ovule, the body of ovule is inverted and gets fused with funiculus along its whole length on one side (most of the angiosperms). In orthotropous condition, the body of ovule lies straight and upright over the funicle. e.g. Piperaceae, Polygonaceae.

In oogamy male and female gametes are morphologically as well as physiologically different. Female gametes are large and nonmotile. Male gametes are small but motile.

Correct Option: B

In oogamy male and female gametes are morphologically as well as physiologically different. Female gametes are large and nonmotile. Male gametes are small but motile.

In campylotropous ovule, the body is curved but the embryosac is straight eg. Capsella. In Anatropous, the body of ovule is inverted and gets fused with funiculus along its whole length on one side (most of the angiosperms). In orthotropous condition the body of ovule lies straight and upright over the funicle. e.g. Piperaceae, Polygonaceae.

Correct Option: A

In campylotropous ovule, the body is curved but the embryosac is straight eg. Capsella. In Anatropous, the body of ovule is inverted and gets fused with funiculus along its whole length on one side (most of the angiosperms). In orthotropous condition the body of ovule lies straight and upright over the funicle. e.g. Piperaceae, Polygonaceae.