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AIIMS 201827 May
Exam
AIIMS
Year
2018
Date
27 May
Subject
Botany
Chapter
Anatomy of Flowering Plants

AIIMS 2018 · 27 May · Botany · Anatomy of Flowering Plants

Vessels in xylem are found in

Vessels in xylem are found in

Options

  1. Aall angiosperms and gymnosperms
  2. Bmost of angiosperms and few gymnosperms
  3. Cfew angiosperms, all gymnosperms and some pteridophytes
  4. Dall pteridophytes.

Correct answer

B. most of angiosperms and few gymnosperms

Step-by-step solution

Vessels occur in the wood (both primary and secondary xylem) of almost all angiosperms. But in some angiosperms like Dracaena, Yucca etc., they are absent. Vessels are also absent in the wood of most gymnosperms (except Gnetales) and pteridophytes.
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