Question
GMOs and Engineered Crops
Humans have been manipulating crop genetics for thousands of years. Through careful breeding and selecting stronger, faster crops have been created in the 1900s, breeders exposed crops to radiation and chemicals that caused them to mutate. A mutation is a change in a crop's genes. Mutations have given fruits and vegetables new colors and made crops disease-resistant. Most grains, vegetables, and fruits were descendants of mutant varieties.
In the early 1980s, scientists discovered how to add genes from other species into plants. This led to the 1994 release of the first GMO sold to the public: the FlavrSavr tomato. It was weak-tasting and was pulled from the market.
In November, the first GMO was approved for sale in the U.S. AquaBounty Technologies' salmon grows twice as fast as normal salmon. It awaits GMO labeling guidelines before it can be imported into the U.S.
Which mutagens are mentioned in the passage?
A. radiation and chemicals
B. microwaves and smoke
C. radiation and asbestos
D. chemicals and x-rays
Humans have been manipulating crop genetics for thousands of years. Through careful breeding and selecting stronger, faster crops have been created in the 1900s, breeders exposed crops to radiation and chemicals that caused them to mutate. A mutation is a change in a crop's genes. Mutations have given fruits and vegetables new colors and made crops disease-resistant. Most grains, vegetables, and fruits were descendants of mutant varieties.
In the early 1980s, scientists discovered how to add genes from other species into plants. This led to the 1994 release of the first GMO sold to the public: the FlavrSavr tomato. It was weak-tasting and was pulled from the market.
In November, the first GMO was approved for sale in the U.S. AquaBounty Technologies' salmon grows twice as fast as normal salmon. It awaits GMO labeling guidelines before it can be imported into the U.S.
Which mutagens are mentioned in the passage?
A. radiation and chemicals
B. microwaves and smoke
C. radiation and asbestos
D. chemicals and x-rays
Answers
GPT-4o mini
A. radiation and chemicals