471.
Axillary bud and terminal bud are derived from the activity of A
lateral meristem
B
intercalary meristem
C
apical meristem
D
parenchyma
Answer :
apical meristem
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472.
Resin canals are A
Schiogenous
B
Lysigenous
C
Schizolysigenous
D
None of the above
Answer :
Schiogenous
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473.
Functional xylem of dicot tree is A
Sap wood
B
Autumn wood
C
Heart wood
D
Hard wood
Answer :
Sap wood
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474.
You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will you use to distinguish between the two? A
Secondary xylem
B
Secondary phloem
C
Protoxylem
D
Cortical cells
Answer :
Protoxylem
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475.
In dicot root which tissue becomes dead due to activity of phellogen A
All tissue outside cortex
B
Tissue outside hypodermis
C
Tissue outside endodermis
D
Tissue outside pericycle
Answer :
Tissue outside pericycle
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476.
Velamen cells are found in epiphytes A
Just outside the cortex
B
Just outside the exodermis
C
Below the endodermis
D
Below the epidermis
Answer :
Just outside the exodermis
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477.
Sieve tube differs from vessels in A
Absence of nucleus
B
Less deposition of lining
C
Being dead
D
Lack of cytoplasm
Answer :
Less deposition of lining
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478.
A.T.S. of stem is stained first with safranin and then fast green. What would be the colour of phloem A
Red
B
Green
C
Orange
D
Purple
Answer :
Green
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479.
Plant growth in length is due to activity of A
Apical meristem
B
Dermatogen
C
Periblem
D
Lateral meristem
Answer :
Apical meristem
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480.
Lignin in a major component of cell wall of A
Xylem
B
Phloem
C
Parenchyma
D
Cambium
Answer :
Xylem
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