Sexual Reproduction in Flowering Plants MCQ Questions & Answers in Botany

101. The body of the ovule is fused within the funicle at

A Micropyle

B Nucellus

C Chalaza

D Hilum

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102. A scion is grafted to a stock. The quality of fruits produced will be determined by the genotype of

A Stock [AIIMS 2009]

B Scion

C Both stock and scion

D Neither stock not scion

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103. "Endostome" and "Exostome" are part of

A Nucellus

B Chalaza

C Pollen wall

D Micropyle

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104. When seed germinates, while the fruit is attached to parent plant, it is called

A Apomixis

B Vivipary

C Parthenocarpy

D Parthenogenesis

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105. Which one of the following represents an ovule, where the embryosac becomes horse-shoe shaped and the funiculus and micropyle are close to each other

A Circinotropous

B Anatropous

C Amphitropous

D Atropous

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106. Both, autogamy and geitonogamy are prevented in -

A Papaya

B Cucumber

C Castor

D Maize

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107. Double fertilisation leading to initiation of endosperm in Angiosperms require

A fusion of one polar nucleus and the second male gamete only

B fusion of two polar nuclei and the second male gamete

C fusion of four or more polar nuclei and the second male gamete only

D all the above kinds of fusion in different Angiosperms

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108. Transfer of pollen to the stigma of another flower of the same plant is

A Autogamy

B Allogamy

C Xenogamy

D Geitonogamy

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109. A dioecious flowering plant prevents both :

A Autogamy and geitonogamy

B Geitonogamy and xenogamy

C Cleistogamy and xenogamy

D Autogamy and xenogamy

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110. In embryo sac, n 2n, 3n conditions are found respectively in

A Egg, antipodal, endosperm

B Nucellus, endosperm, egg

C Antipodal, zygote, endosperm

D Endosperm, nucellus, eg

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101. The body of the ovule is fused within the funicle at

102. A scion is grafted to a stock. The quality of fruits produced will be determined by the genotype of

103. "Endostome" and "Exostome" are part of

104. When seed germinates, while the fruit is attached to parent plant, it is called

105. Which one of the following represents an ovule, where the embryosac becomes horse-shoe shaped and the funiculus and micropyle are close to each other

106. Both, autogamy and geitonogamy are prevented in -

107. Double fertilisation leading to initiation of endosperm in Angiosperms require

108. Transfer of pollen to the stigma of another flower of the same plant is

109. A dioecious flowering plant prevents both :

110. In embryo sac, n 2n, 3n conditions are found respectively in

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