Female flowers remain submerged in water and the pollen grains are released inside the water in:

1. Sea grasses

2. Vallisneria

3. Water lily

4. Water hyacinth

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Scientists are trying to transfer apomictic genes into hybrid varieties of several of our food and vegetable crops so that:

1. They get resistance against common pathogens

2. The yield of these plants can be increased many folds

3. Hybrid seeds need not be produced every year

4. Their germplasm is easily stored in labs for further research

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Which of the following is the most common abiotic pollinating agent?

1. Insects

2. Birds and bats

3. Wind

4. Water

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Seeds offer several advantages to angiosperms. Seed formation is more dependable because:

1. Seeds have better adaptive strategies for dispersal

2. Reproductive processes become independent of water

3. Hard seed coat provides protection to the young embryos

4. They generate new genetic combinations leading to variations

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The given diagram exemplifies the fruit in:

1. Fig

2. Pineapple

3. Mulberry

4. Raspberry

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The ovule of an angiosperm is technically equivalent to

(1) megasporangium

(2) megasporophyll

(3) megaspore mother cell

(4) megaspore

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Which one of the following may require pollinators, but is genetically similar to autogamy?

(1) Geitonogamy

(2) Xenogamy

(3) Apogamy

(4) Cleistogamy

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Flowers, which have single ovule in the ovary and are packed into inflorescence are usually pollinated by

(1) water

(2) bee

(3) wind

(4) bat

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Functional megaspore in an angiosperm develops into

(1) ovule

(2) endosperm

(3) embryo sac

(4) embryo

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A dioecious flowering plant prevents both

(1) autogamy and xenogamy

(2) autogamy and geitonogamy

(3) geitonogamy and xenogamy

(4) cleistogamy and xenogamy

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