Why is decreased genetic variation in a species considered a negative impact of genetic technologies?

The negative impact of decreased genetic variation in a species is that it makes the species more susceptible to diseases.

The term genetic variation refers to the differences in the genotype of the individual members of a population. This is the result of recombination of genes during the natural process of reproduction.

The negative impact of decreased genetic variation in a species is that it makes the species more susceptible to diseases.

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Why is decreased genetic variation in a species considered a negative impact of genetic technologies?

It reduces the nutritional value of foods produced by these species.

It produces crops that are more resistant to weed killer.

It makes the species more susceptible to diseases.

It results in foods with less desirable traits.

Learn more about genetic variation:link

It makes the species more susceptible to diseases.

Explanation:

High genetic variations are crucial for any species to survive in a changing environment. Scientifically speaking, these variations help the species to evolve against changing environmental conditions. Thus, if the genetic variations (or genetic pool) is reduced due to any reason (either man-made or natural), it will result in diseases and possibly their elimination from nature.

For example, first-cousin marriages are biologically not recommended because the genetic pool will reduce with the time (i.e. members of the same family have a similar genetic pool). Thus, the new recombinations during meiosis are not sufficient to make future generations more genetically versatile. Therefore, their offsprings will have more genetic disorders and they will be less fit compared to the other individuals whose parents belong to different families.

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explanation:

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