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Which shows the need for gene banks for agriculture crops

A . Plagues wiped out the entire crop in a large region
B. Global warming caused reduced rainfall in an agricultural area
C.volcanic eruptions formed new land
D. Soil erosion increased due to poor farming practices

1 Answer

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The answer is A) Plagues wiped out the entire crop in a large region. This would result in the dramatic lowering of genetic diversity within the crop species. This as we know is very bad for an organism, as a lower genetic diversity can result in deleterious genes becoming more common, which can dramatically lower the fitness of a species. By storing genetic information for cop species in a gene bank, we can maintain the wide genetic diversity of important crop species, in case some sort of disaster happens to wipe out much of the crop population within a particular year.
User Syed Shibli
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