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Strategies for Enhancement in Food Production

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Biology

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Biology

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12

In gymnosperms, the pollen chamber represents

  • a cell in the pollen grain in which the sperms are formed.

  • a cavity in the ovule in which pollen grains are stored after pollination

  • an opening in the megagametophyte through which the pollen tube approaches the egg

  • the microsporangium in which pollen grains develop


B.

a cavity in the ovule in which pollen grains are stored after pollination

In gymnosperms, the pollen chamber is a cavity in the ovule in which pollen grains are stored after pollination.

In gymnosperms, the pollen chamber is a cavity in the ovule in which pollen grains are stored after pollination.

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Explain why Inbreeding cannot be continued for long .

Inbreeding if continued causes Inbreeding depression that means  productivity and fertility of the organisms is eventually reduced. Inbreeding produces homozygous condition and exposes harmful recessive genes.
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What was the aim of white revolution ?

Increased milk production.
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Who is called the Father of White revolution ?

Dr. V. Kurien.
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Give one example of each of indigenous and exotic milch breeds of cow.

Indigenous breed : Sahiwal;
Exotic breed : Brown swiss.
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Define the livestock.

Domesticated animals reared using agricultural practices for the production of milk, hide, flesh, etc for human use.
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