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◉ Science·2 min·Updated Mar 14, 2026

What is Gene Drive?

Gene Drive

Quick Answer

A gene drive is a genetic engineering technology that increases the likelihood of a specific gene being passed on to future generations. It can spread genetic traits quickly through populations, potentially altering entire species over time.

Overview

Gene drive works by ensuring that a particular gene is inherited more frequently than normal. This is achieved by using techniques like CRISPR to insert or modify genes in a way that biases inheritance. For instance, if a gene drive is introduced into a population of mosquitoes, it can help spread a gene that makes them resistant to malaria or reduces their population size. The technology is significant because it offers a powerful tool for controlling pests and diseases. In agriculture, gene drives could help manage crop pests without relying on harmful pesticides, leading to safer food production. In conservation, gene drives might be used to reduce invasive species that threaten native ecosystems, helping to restore balance in nature. However, gene drives also raise ethical and ecological concerns. The rapid spread of engineered traits could have unforeseen consequences on ecosystems and biodiversity. As scientists explore the potential of gene drives, it is crucial to carefully consider both the benefits and risks associated with their use.

Frequently Asked Questions

A gene drive increases the chances that a specific gene will be passed on to the next generation, unlike traditional inheritance where genes have a 50% chance of being inherited. This means that a gene drive can spread through a population much faster than a typical gene.
Gene drives could be used to control disease-carrying insects, like mosquitoes, by spreading genes that make them less capable of transmitting diseases. They may also help manage agricultural pests or even assist in conservation efforts by controlling invasive species.
The main risks include unintended consequences on ecosystems, such as disrupting food chains or harming non-target species. There are also ethical concerns about altering natural populations and the potential for gene drives to spread beyond intended areas.