In angiosperms, microsprogenesis and megasporogenesis from Biol

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 Multiple Choice QuestionsMultiple Choice Questions

11.

Advantage of cleistogamy is 

  • higher genetic variability

  • more vigorous offspring

  • no dependence on pollinators

  • no dependence on pollinators

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12.

Perisperm differs from endosperms in 

  • being a haploid  tissue

  • having no reserve food

  • being a diploid tissue

  • being a diploid tissue

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13.

Which one of the following is not the function of the placenta? It

  • facilitates the supply of oxygen and nutrients to the embryo

  • secretes oestrogen

  • facilitates removal of carbon dioxide and waste material from embryo

  • facilitates removal of carbon dioxide and waste material from embryo

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14.

Which is Mendelian idea depicted by a cross in which the F1 generation resembles both the parents?

  • Incomplete dominance

  • Law of dominance

  • Inheritance of one gene

  • Inheritance of one gene

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15.

Filiform apparatus is characteristic feature of

  • Generative cell

  • Nucellar embryo

  • Aleurone cell

  • Aleurone cell

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16.

In angiosperms, microsprogenesis and megasporogenesis

  • occur in anther

  • form gametes without further divisions

  • Involve meiosis

  • Involve meiosis


C.

Involve meiosis

Both event microsporogenesis and megasporogenesis involve the process of meiosis which results in the formation of haploid gametes from the microspore or megaspore mother cells. 

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17.

Flowers are unisexual in

  • Pea

  • Cucumber

  • China rose

  • China rose

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18.

Placenta and pericarp are both edible portions in 

  • apple 

  • banana

  • tomato

  • tomato

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19.

Which of the following statements is correct?

  • The seed in grasses is not endospermic

  • Mango is a parthenocarpic fruit

  • A proteinaceous aleurone layer is present in maize grain

  • A proteinaceous aleurone layer is present in maize grain

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20.

Coconut water from a tender coconut is

  • Immature embryo

  • Free nuclear endosperm

  • Innermost layers of the seed coat

  • Innermost layers of the seed coat

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