391. Embryo of a seed is made up of

A Meristematic tissue
B Parenchyma
C Collenchyma
D Sclerenchyma
Answer :   Meristematic tissue
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392. Bordered pits occur in

A Sec. phloem
B Protoxylem
C Metaxylem
D Bark
Answer :   Metaxylem
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393. The cambium which produces cork is called as

A Phelloderm
B Phellogen
C Periblem
D Plerome
Answer :   Phellogen
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394. Normally in dicot stem, phellogen develops from

A Hypodermis
B Phellem
C Endodermal cells
D Epidermal & pericycle cells
Answer :   Hypodermis
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395. Mesophyll is differentiated in spongy & palisade tissue is

A Radial vascular bundle
B Secondary growth
C Pith less developed or absent
D Vascular bundles 15 - 20
Answer :   Secondary growth
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396. The lateral branches of roots (dicot) generally originates from

A Cortex
B Endodermis
C Cork cambium
D Pericycle cells lying against protoxylem
Answer :   Pericycle cells lying against protoxylem
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397. Tunica is a rib meristem because it divides in

A Anticlinal plane only
B Periclinal plane only
C A and B both
D Several different planes
Answer :   Anticlinal plane only
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398. The vascular cambium normally gives rise to:

A Primary phloem
B Secondary xylem
C Periderm
D Phelloderm
Answer :   Secondary xylem
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399. Stem of date palm increases in girth due to activity of

A Intercalary meristem
B Apical meristem
C Lateral meristem
D None of the above
Answer :   Apical meristem
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400. All the xylem elements, when mature are dead except

A Tracheids
B Vessels
C Xylem Parenchyma
D Xylem Fibre
Answer :   Xylem Parenchyma
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