Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NTA Abhyas NEET2020BotanyPlant KingdomPractice

The seed of Pinus is

Options

  1. AUneconomic and nonendospermic
  2. BAbaxial and rounded
  3. CAdaxial and endospermic
  4. DHypogeal and monocotyledonous

Correct answer

C. Adaxial and endospermic

Step-by-step solution

Seed of Pinus is endospermic, perispermic diploid (2 n ). The wing of seed is thin, membranous diploid (2 x ) and develops jointly from the basal upper surface (adaxial) of ovuliferous scale and outer layer of integument of the ovule.

Practice Plant Kingdom on Quantrex Academy →

More from Plant Kingdom

Sphenopsida class belongs to __________. 2026In which one of the following, the ovules are not enclosed by an ovary wall and remain exposed ? 2026Given below are two statements : Statement I : In gymnosperms, the male and female gametophytes remain within the sporangia. Statement II : In gymnosperms, seeds are not covered. I 2026Which one of the following is the characteristic feature of gymnosperms? 2025In bryophytes, the gemmae help in which one of the following? 2025The correct sequence of events in the life cycle of bryophytes is A. Fusion of antherozoid with egg. B. Attachment of gametophyte to substratum. C. Reduction division to produce ha 2025Given below are the stages in the life cycle of pteridophytes. Arrange the following stages in the correct sequence. A. Prothallus stage B. Meiosis in spore mother cells C. Fertili 2025Match List-I with List-II. array |l|l|l|l| & List-I & & List-II A . & Pteridophyte & (I) & Salvia B. & Bryophyte & (II) & Ginkgo C. & Angiosperm & (III) & Polytrichum D. & Gymnospe 2025 Full Plant Kingdom list All NTA Abhyas NEET PYQs