Question

When a transgene from a Genetically Modified crop escapes through pollen to a related plant species, it is known as:

• A. Gene transfer
• B. Gene pollution
• C. DNA contamination
• D. Toxicity transfer

Hint:

Understand the term ‘gene pollution’ which is often associated with unintentional spread of genes, and learn how it differs from gene transfer or DNA contamination.

Answer 1

The Correct Option is B

Gene Pollution: Gene pollution, also known as genetic pollution, occurs when genes from a genetically modified organism are transferred to a non-genetically modified organism (especially a related wild species). This transfer often occurs through pollen, as it can travel to nearby related species, causing a change in the genetic structure of that species. It is termed ‘pollution’ because the spread of genes is unregulated, and can cause unexpected effects. Gene Transfer: Gene transfer, while related to the movement of genes, does not specify the negative implications of the escape. It is more of a general term for genetic material transfer, and this might be in a controlled environment. DNA Contamination: DNA contamination refers to the introduction of unwanted DNA into a sample or system which is not necessarily from pollen. This can happen because of laboratory practices, or accidental contamination. Toxicity Transfer: Toxicity transfer refers to the transfer of toxic substances, and this is usually not related to transfer of genetic material.