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Emasculation and bagging are the two imp...

Emasculation and bagging are the two important steps carried during artificial hybridisation to obtain superior varieties of desired plants. Explain giving reasons, in which types of flowers and at what stages are the two processes carried out.

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Explain the process of artificial hybridisation to get improved crop, variety in (i) plants bearing bisexual flowers (ii) female parent producing unisexual flowers.

You are conducting artificial hybridization on papaya and potato. Which one of them would require the step of emasculation and why? However for both you will use the process of bagging. Justify giving one reason.

Knowledge Check

  • Emasculation of female plant having bisexual flowers is carried out in hybridisation program with the help of forceps by removing

    A
    Style before dehiscence of anthers
    B
    Style after dehiscence of anthers
    C
    Anthers before their dehiscence
    D
    Anthers after their dehiscence.

  • Find out the correct sentence. (i) Hybridisation means crossing between genetically dissimilar plants. (ii) Cross between two varieties is called as interspecific hybridisation. (iii) Introducing a gene of desired character into a plant gives genetically modified crop. (iv) Cross between plants of two species is called as intervarietal hybridisation.

    A
    (i) and (iii)
    B
    (ii) and (iv)
    C
    (ii) and (iii)
    D
    (iii) and (iv)

  • Find out the correct sentence. Hybridisation means crossing between genetically dissimilar plants Cross between two varieties is called as inter specific hybridisation Introducing genes of desired character into a plant gives genetically modified crop cross between plants of two species is called as inter varietal hybridisation

    A
    (i) and (iii)
    B
    (ii) and (iv)
    C
    (ii) and (iii)
    D
    (iii) and (iv)

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    Work out a monohybrid cross upto F_(2) generation between two pea plants and two Antirrhinum plants both having contrasting traits with respect to colour of flower. Comment on the pattern of inheritance in the crosses carried above.

    Work out a monohybrid cross upto F_(2) generation between two pea plants and two Antirrhinum plants both having contrasting traits with respect to colour of flower. Comment on the pattern of inheritance in the crosses carried above.

    Assertion : Somatic hybridisation is a process where protoplasts of two desired plants can be fused to develop improved plants Reason : Cross breeding can also induce variability

    During which one of these processes carried out in a water purification plant does water become colourless?

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