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Centripetal and centrifugal xylems are i...

Centripetal and centrifugal xylems are important features of
(a) Root and stem, respectively
(b) Exarch and endarch, respectively
(c) Endarch and exarch, respectively
(d) Both a and b

A

Root and stem respectively

B

Exarch and endarch respectively

C

Endarch and exarch respectively

D

Both (1) and (2)

Text Solution

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The correct Answer is:
D
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AAKASH INSTITUTE ENGLISH-ANATOMY OF FLOWERING PLANTS -ASSIGNMENT SECTION B Objective Type Questions
  1. Tissus commonly known as the passport point or biological check post i...

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  2. Seat of origin of lateral root and formation of cork cambium are featu...

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  3. Centripetal and centrifugal xylems are important features of (a) Root...

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  4. Memebers of Winteracae, Tetracentraceae and trochodendraceae

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  5. Which of the following vascualr bundles are always open?

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  6. The vascular bundlies in the stems of several dicots are conjoint, col...

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  7. Which is not true for monocot stem ?

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  8. Vascular bundles are conjoint, collateral, endarch and lack cambium be...

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  9. Select a set having correct match

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  10. State true or false. Monocot stem differs from dicot stem.

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  11. Vascular cambium is a meristematic layer that cuts off

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  12. Derivatives of the secondary meristem in the steler region are

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  13. What is the position of oldest secondary phloem ?

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  14. In a mature dicot stem which has undergone seconday growth, youngest l...

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  15. (A) heart wood is durable, dark and central in position. (B) Tyloses...

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  16. Secondary growth in extrasteler region is due to activity of

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  17. Seasonal activity of vascular cambium is influenced by many factors, e...

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  18. When secondary growth is initiated in dicot stem, what will happen fir...

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  19. All given tissues are formed as a result of redifferentiation process,...

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  20. Vascular cambium of dicot root is purely secondary in origin and airse...

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