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Question

The conservation of local (endemic) varieties of crops is must because
  1. These are source of genes for genetic diversity.
  2. These are high yielding and nutritious.
  3. We want to conserve all plants and animals of the past for our knowledge.
  4. All of the above.

A
These are source of genes for genetic diversity.
B
All of the above.
C
These are high yielding and nutritious.
D
We want to conserve all plants and animals of the past for our knowledge.
Solution
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Genetic diversity refers to the variety of genes within a species. Each species is made up of individuals that have their own particular genetic composition. Within a species there may also be discrete populations with distinctive genes. Sexual reproduction is critical for maintaining genetic diversity within a species, because it combines the parents genetic material, resulting in offspring with unique genetic blue prints different from either parent.
The conservation of local varieties are important, as they provide genes for genetic diversity.

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