Today I am going to share with you the previous year's question on Sexual Reproduction in Flowering Plants. Here is the question bank so you can download it
Sexual Reproduction in Flowering Plants |
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Sexual Reproduction in Flowering Plants
1. Chalaza represents the
(1) Tip of the ovule
(2) Base of the ovule
(3) Both (1) & (2)
(4) Stalk of the ovule
2. Ovules generally differentiate a single megaspore mother
cell in the
(1) Micropylar region
(2) Chalaza region
(3) Both 1 & 2
(4) Integument region
3. Polar nuclei are situated in the central cell
(1) Below the egg apparatus
(2) Above the egg apparatus
(3) Below the antipodals
(4) All of the above
4. An example of an insect-pollinated flower, in which the flower
provides a safe place to lay eggs for insects is
(1) Vallisneria
(2) Salvia
(3) Amorphophallus
(4) Maize
5. Endosperm development precedes embryo development,
because
(1) Embryo provides nutrition to developing endosperm
(2) Endosperm provides nutrition to the developing embryo
(3) Endosperm development starts after embryo
development
(4) All of the above
6. Regarding the formation of a pollen grain from a microspore the following statement is incorrect
(1) Generative cell is bigger
(2) Vegetative cell possesses an irregularly shaped nucleus
(3) Generative cell floats in the cytoplasm of vegetative cell
(4) Vacuole is present in vegetative cell
7. During embryo sac formation how many nuclei out of
eight nuclei go through cytokinesis or wall formation?
(1) All eight
(2) Two
(3) Six
(4) Four
8. The plants in which some of the nucellar cells surrounding
the embryo sac start dividing protrude into the embryo sac
and develop into the embryos are: -
(1) Citrus and mango
(2) Papaya and Citrus
(3) Citrus and litchi
(4) Mango and guava
9. Zygote develops into the ............. and the primary endosperm
cell forms the ............. tissue in angiosperm: -
(1) Embryo, endosperm
(2) Endosperm, embryo
(3) Seed, embryo
(4) Endosperm, seed
10. The coconut water form tender coconut is …....... and the
white kernel is the ….......:
(1) Nuclear endosperm, cellular endosperm
(2) Cellular endosperm, nuclear endosperm
(3) Cellular endosperm, cellular endosperm
(4) Nuclear endosperm, nuclear endosperm
11. The portion of embryonal axis above the level of cotyledons is
the …........... and portion below the level of cotyledons is
…........... in dicotyledonous embryo: -
(1) Epicotyl, hypocotyl
(2) Hypocotyl, epicotyl
(3) Epicotyl, plumule
(4) Hypocotyl, plumule
12. In some plants like castor and maize, both male and female
flowers are present on the same plant that is called
monoecious-which prevents: -
(1) Both autogamy and geitonogamy
(2) Geitonogamy but not
autogamy
(3) Both geitonogamy and xenogamy
(4) Autogamy but not geitonogamy
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