Stems modified into flat green organs performing the functions of leaves are known as

(1) phyllodes

(2) phylloclades

(3) scales

(4) cladodes

Subtopic:  Morphology of Stems | Aerial Stem Modification |
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The standard petal of a papilionaceous corolla is also called

(1) pappus

(2) vexillum

(3) corona

(4) carina

Subtopic:  Flower & Parts of Flower: I | Flower & Parts of Flower |
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Roots play insignificant role in absorption of water in

1. sunflower

2. Pistia

3. pea

4. wheat

Subtopic:  Morphology of Roots | Modification of Roots |
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Axile placentation is present in

1. dianthus                   

2. lemon

3. pea                           

4. Argemone

Subtopic:  Parts of Flower: III | Flower & Parts of Flower |
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Among China rose, mustard, brinjal, potato, guava, cucumber, onion and tulip, how many

plants have superior ovary?

1. Five                         

2. Six

3. Three                       

4. Four

Subtopic:  Flower & Parts of Flower: I | Flower & Parts of Flower |
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Perigynous flowers are found in 

(1) Guava

(2) Cucumber

(3) China rose

(4) Rose

Subtopic:  Flower & Parts of Flower: I | Flower & Parts of Flower |
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Leaves become modified into spines in

1. Opuntia

2. pea

3. onion

4. silk cotton

Subtopic:  Modification of Leaf |
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The hilum is a scar on the

1. seed, where funicle was attached

2. fruit, where it was attached to the pedicel

3. fruit, where style was present

4. seed, where micropyle was present

 

Subtopic:  Seed |
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When the margins of sepals or petals overlap one another without any particular direction, the condition is termed as

(1) vexillary

(2) imbricate

(3) twisted

(4) valvate

Subtopic:  Flower & Parts of Flower: I | Flower & Parts of Flower |
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Which one of the following statements is correct?

(1) The seed in grasses is not endospermic

(2) Mango is a parthenocarpic fruit

(3) A proteinaceous aleurone layer is present in maize grain

(4) A sterile pistil is called a staminode

Subtopic:  Fruits & their Types | Seed |
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