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NEET UG Sexual Reproduction in Flowering Plants — practice questions — page 3

Explore 80 free Sexual Reproduction in Flowering Plants questions in NEET UG Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Sexual Reproduction in Flowering Plants questions and exercises with answers

Showing questions 61–80 of 80.

Which is a marine sea-grass that is pollinated by water?Read the answer and worked solution →Water hyacinth and water lily are usually pollinated byRead the answer and worked solution →Pollen grains of most water-pollinated species avoid wetting by aRead the answer and worked solution →Which plant cannot complete its life cycle without a particular moth species?Read the answer and worked solution →Monoecious plants such as castor and maize preventRead the answer and worked solution →Self-incompatibility blocks self-pollen byRead the answer and worked solution →In artificial hybridisation, emasculated flowers are usually covered with bags ofRead the answer and worked solution →When the female parent bears unisexual flowers, the breeder can skipRead the answer and worked solution →Pollen germination can be watched on a slide using a drop ofRead the answer and worked solution →Triple fusion in the embryo sac involves the fusion ofRead the answer and worked solution →The white kernel of a coconut isRead the answer and worked solution →Most zygotes divide only after some endosperm forms, whichRead the answer and worked solution →The correct order of stages in dicot embryogeny isRead the answer and worked solution →The hypocotyl of a dicot embryo ends at its lower tip in theRead the answer and worked solution →In a grass embryo, the radicle and root cap are enclosed in theRead the answer and worked solution →Mature seeds typically contain about how much moisture by mass?Read the answer and worked solution →In a seed, the micropyle persists as a pore that lets inRead the answer and worked solution →Which seed germinated after an estimated 10,000 years of dormancy?Read the answer and worked solution →A 2000-year-old viable date palm seed was found near theRead the answer and worked solution →Apomixis is seen in some species ofRead the answer and worked solution →

Worked practice questions

Which is a marine sea-grass that is pollinated by water?

  1. Vallisneria
  2. Zostera
  3. Hydrilla
  4. Water lily
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Correct answer: B. Zostera

Zostera is a marine sea-grass, whereas Vallisneria and Hydrilla are freshwater water-pollinated plants.

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Water hyacinth and water lily are usually pollinated by

  1. Water currents below the surface
  2. Pollen floating on the surface
  3. Insects or wind above the water
  4. Snails moving among the leaves
Show answer and solution

Correct answer: C. Insects or wind above the water

Their flowers rise above the water level and are pollinated by insects or wind like most land plants.

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Pollen grains of most water-pollinated species avoid wetting by a

  1. Layer of air bubbles
  2. Mucilaginous covering
  3. Thick cellulose layer
  4. Waxy cuticle coat
Show answer and solution

Correct answer: B. Mucilaginous covering

A mucilaginous covering protects the pollen of most water-pollinated species from wetting.

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