NTA Abhyas NEET2020BotanyMorphology of Flowering PlantsPractice
Given below is a plant and two properties of it. Which of these options is INCORRECT?
Options
- ACucumber: a Stem tendrils develop from axillary buds b The margin of thalamus grows upward enclosing the ovary
- BRose: a Ovary is half inferior b Gynoecium is polycarpellary and apocarpous
- CLemon: a Stamens are polyadelphous b Placenta is axial and the ovules are attached to it in a multilocular ova
- DCastor: a The seed has one cotyledon b The seed has endosperm
Correct answer
D. Castor: a The seed has one cotyledon b The seed has endosperm
Step-by-step solution
Castor is a dicot plant with two cotyledons and endosperm in retained in its seed. Cucumber has stem tendrils that develop from axillary buds and are slender and spirally coiled helping it to climb. It has an epigynous flower with an inferior ovary. Rose has a perigynous flower with half an inferior ovary. It has many free carpels. Thus, its gynoecium is polycarpellary and apocarpous. In lemon, there are many stamens whose filaments are fused together to form more than two bundles. Lemons have axile placentation in