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Question

Read the following five statements (A - E)
(A) Sheathing leaf base is found in monocotyledons.
(B) In some leguminous plants the leaf base may become swollen, which is called the pulvinus.
(C) A bud is present in the axil of leaflets of the compound leaf.
(D) Palmately compound leaves are found in neem.
(E) Whorled phyllotaxy is found in Alstonia.
How many of the above statements are correct?


A
Four
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B
One
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C
Two
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D
Three
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Solution

The correct option is D Three
  • In grasses and many monocots, the leaf base is broad and surrounds the stem as an envelope, such a leaf base is called sheathing leaf base. e.g., Sorghum, Wheat, and Palms. Hence statement (A) is a correct statement.
  •  The leaf is attached to the stem by the leaf base. In some leguminous plants, the leaf-base may become swollen, which is called the pulvinus. Hence statement (B) is a correct statement.
  •  Phyllotaxy is the pattern of arrangement of leaves on the stem or branch. In Alstonia, more than two leaves arise at a node and form a whorl. Hence Whorled phyllotaxy is found in Alstonia. Hence statement (E) is a correct statement.
  • Hence Three statements are correct i.e (A),(B) AND (E).
  • So, the correct answer is 'Three'.

Biology

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