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Reproduction in Organisms

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12

Keel  is characteristic of the flowers of

• gulmohur

• cassia

• Calatropis

• Bean

D.

Bean

The bean or legume family is one of the most common plant families. Flowers in bean family typically have their two bottom petals grown together along one side forming a structure a bit like a narrow but deep scoop. This special Bean- family kind of two -in-one petal is called the keel, like the keel of a boat. Bean blossoms with the configuration are said to be papilionaceous.

The bean or legume family is one of the most common plant families. Flowers in bean family typically have their two bottom petals grown together along one side forming a structure a bit like a narrow but deep scoop. This special Bean- family kind of two -in-one petal is called the keel, like the keel of a boat. Bean blossoms with the configuration are said to be papilionaceous.

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Vegetative type of reproduction means :
• (A) plant portion is used as a means of propagation
• (B) seed is used as a means of propagation
• (C) flower is used as a means of propagation
• (D) None of the above.

A.

(A) plant portion is used as a means of propagation
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Micropropagation is based on :
• (A) tissue culture
• (B) hybridization
• (C) microtomy
• (D) genetic control.

A.

(A) tissue culture
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The entry of pollen tube into embryo sac through the integuments is termed as :
• (A) porogamy
• (B) chalazogamy
• (C) mesogamy
• (D) Both (a) and (b)

C.

(C) mesogamy
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Testa and tegmen are present in :
• (A) flower
• (B) ovary
• (C) seed
• (D) seed coat.

D.

(D) seed coat.
2138 Views

Bryophyllum is vegetatively propagated by :
• (A) Bulbil
• (B) Leaf buds
• (C) rhizome
• (D) Offset.

B.

(B) Leaf buds
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