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Morphology Of Flowering Plants

Question
CBSEENBI11003066
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A fern prothallus is bisexual. If fertilisation takes place between their gametes than it is known as

  • cross- fertilisation

  • self- fertilisation

  • isogamous

  • viviparous

Solution

B.

self- fertilisation

Self- fertilisation is the fusion of male and female gametes produced by the same individual. 

Cross- fertilisation is the fertilisation of male and female gametes produced by different individuals.

Isogamous  is the fusion of isogametes.

Viviparous is a term used for organisms which give birth to young ones.

Some More Questions From Morphology of Flowering Plants Chapter

Define the following terms:

(c) actinomorphic

Define the following terms:

(d) zygomorphic

Define the following terms:
(e) superior ovary

Define the following terms:
perigynous flower

Define the following terms:
epipetalous stamen

Define the following terms:

(a) Racemose and cymose inflorescence

Define the following terms:
(b) Fibrous root and adventitious root

Define the following terms:
(c) Apocarpous and syncarpous ovary

Draw the labelled diagram of the following:
(i) Gram seed     (ii)    V.S. of maize seed

Describe modifications of stem with suitable examples.

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