A.I. Explanation:

Correct answer: led

Explanation: The word 'led' is the past tense of 'lead,' which is appropriate here as it indicates that the University of California San Diego was the driving force behind the research effort. This fits grammatically as it aligns with the past tense context of the sentence.

Meaning: 'Led' means to guide or direct a group or effort.

Wrong options:

• revealed: 'Revealed' is the past tense of 'reveal,' which does not fit as it implies showing something rather than directing an effort.
• predict: 'Predict' is a verb that means to forecast or anticipate, which does not fit the context of leading a research effort.
• detailed: 'Detailed' is an adjective that describes something with many details, which does not fit as a verb in this context.
• accelerated: 'Accelerated' is the past tense of 'accelerate,' meaning to speed up, which does not relate to the act of leading a research effort.
• spared: 'Spared' is the past tense of 'spare,' meaning to refrain from harming or using something, which does not fit the context.
• encouraged: 'Encouraged' is the past tense of 'encourage,' meaning to give support or confidence, which does not fit as it does not imply leadership.

Correct answer: detailed

Explanation: The word 'detailed' is an adjective that describes the maps as being thorough and comprehensive. This fits grammatically as it modifies 'maps' and aligns with the context of producing in-depth representations of gene switches.

Meaning: 'Detailed' means having many details or being thorough.

Wrong options:

• revealed: 'Revealed' is a verb that does not fit as it does not describe the nature of the maps.
• predict: 'Predict' is a verb that implies forecasting, which does not describe the maps themselves.
• contribute: 'Contribute' is a verb that does not fit as it does not describe the quality of the maps.
• accelerated: 'Accelerated' is an adjective that means fast or quick, which does not describe the maps appropriately.
• spared: 'Spared' is a verb that does not relate to the description of the maps.
• encouraged: 'Encouraged' is a verb that does not fit as it does not describe the maps.

Correct answer: revealed

Explanation: The word 'revealed' is the past tense of 'reveal,' which indicates that the researchers uncovered or made known the links between cell types and disorders. This fits grammatically and contextually as it describes an action that has already taken place.

Meaning: 'Revealed' means to make something known or visible that was previously hidden.

Wrong options:

• predict: 'Predict' is a verb that means to forecast, which does not fit as it does not describe the action of uncovering links.
• detailed: 'Detailed' is an adjective that does not fit as it does not describe an action.
• contribute: 'Contribute' is a verb that means to add to something, which does not fit the context of revealing links.
• accelerated: 'Accelerated' is a verb that means to speed up, which does not relate to the action of revealing.
• spared: 'Spared' is a verb that means to refrain from harming, which does not fit the context.
• encouraged: 'Encouraged' is a verb that means to support, which does not fit as it does not describe the action of revealing.

Correct answer: predict

Explanation: The word 'predict' is a verb that indicates the action of forecasting the influence of gene variants. This fits grammatically as it aligns with the infinitive form used after 'to' and is contextually appropriate as it describes the purpose of the AI tools developed by the team.

Meaning: 'Predict' means to forecast or anticipate something that will happen in the future.

Wrong options:

• revealed: 'Revealed' is a verb that does not fit as it does not describe the action of forecasting.
• detailed: 'Detailed' is an adjective that does not fit as it does not describe an action.
• contribute: 'Contribute' is a verb that means to add to something, which does not fit the context of forecasting.
• accelerated: 'Accelerated' is a verb that means to speed up, which does not relate to the action of predicting.
• spared: 'Spared' is a verb that means to refrain from harming, which does not fit the context.
• encouraged: 'Encouraged' is a verb that means to support, which does not fit as it does not describe the action of predicting.

Correct answer: contribute

Explanation: The word 'contribute' is a verb that indicates the action of adding to or playing a part in the development of disease. This fits grammatically as it follows 'may' in the modal verb structure and is contextually appropriate as it describes the potential impact of gene variants.

Meaning: 'Contribute' means to add to or help cause something to happen.

Wrong options:

• revealed: 'Revealed' is a verb that does not fit as it does not describe the action of adding to disease.
• predict: 'Predict' is a verb that means to forecast, which does not fit the context of contributing to disease.
• detailed: 'Detailed' is an adjective that does not fit as it does not describe an action.
• accelerated: 'Accelerated' is a verb that means to speed up, which does not relate to the action of contributing.
• spared: 'Spared' is a verb that means to refrain from harming, which does not fit the context.
• encouraged: 'Encouraged' is a verb that means to support, which does not fit as it does not describe the action of contributing.