Which is an advantage that crops may attain through genetic engineering?

• A. Decreased yield under optimal conditions
• B. Increased resistance to pests and diseases
• C. Greater susceptibility to environmental stress
• D. Reduced genetic diversity in wild populations

Answer: (B)

Verified step by step guidance

1. Understand the concept of genetic engineering: Genetic engineering involves modifying the DNA of organisms, such as crops, to introduce desirable traits. These traits can include resistance to pests, diseases, or environmental stress, as well as improved yield or nutritional content.
2. Analyze the options provided: Evaluate each option to determine whether it aligns with the benefits of genetic engineering. For example, 'Decreased yield under optimal conditions' is not a benefit, as genetic engineering typically aims to improve yield.
3. Focus on the correct answer: 'Increased resistance to pests and diseases' is a well-documented advantage of genetic engineering. By introducing genes that produce pest-resistant proteins or enhance disease resistance, crops can better withstand biological threats.
4. Consider the drawbacks mentioned: 'Greater susceptibility to environmental stress' and 'Reduced genetic diversity in wild populations' are potential concerns or risks associated with genetic engineering, not advantages. These options help highlight the trade-offs involved in genetic modification.
5. Conclude with the importance of genetic engineering: Emphasize that genetic engineering can provide significant benefits, such as increased resistance to pests and diseases, but it is essential to balance these advantages with potential ecological and ethical considerations.