Q6 of 49 Page 6

'Fertilisation is not an obligatory event for fruit production in certain plants'. Explain the statement.

‘Fertilisation is not an obligatory event for fruit production in certain plants' because in some plants unfertilized egg grows into an embryo, this process is known as parthenogenesis. In some fruits chemical fertilisers are also given to enhance the growth.


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4

With which type of reproduction do we associate the reduction division? Analyse the reasons for it.

 5

Is it possible to consider vegetative propagation observed in certain plants like Bryophyllum, water hyacinth, ginger etc., as a type of asexual reproduction? Give two/three reasons.

 7

In a developing embryo, analyse the consequences if cell divisions are not followed by cell differentiation.

 8

List the changes observed in an angiosperm flower subsequent to pollination and fertilisation.