A.I. Explanation:

Correct answer: revealed

Explanation: The word 'revealed' is the past tense of the verb 'reveal,' which fits grammatically as it describes an action that has already occurred. It aligns with the context of DNA sequencing uncovering information about human fossils.

Meaning: To 'reveal' means to make something known or visible that was previously hidden or unknown.

Wrong options:

• surrounded: 'Surrounded' is the past participle of 'surround,' which does not fit the context of disclosing information about the fossils.
• drafted: 'Drafted' refers to the act of preparing a preliminary version of a document, which is unrelated to the context of uncovering information.
• linked: 'Linked' is the past tense of 'link,' which does not fit here as it does not convey the action of uncovering or discovering.
• extracted: 'Extracted' is the past tense of 'extract,' which refers to removing something, not revealing information.
• delved: 'Delved' is the past tense of 'delve,' meaning to investigate deeply, which does not fit the context of revealing information.

Correct answer: extracted

Explanation: The term 'extracted' is the past participle of 'extract,' which fits grammatically as it describes the action of obtaining the genome from the bones. This aligns with the context of analyzing genetic material.

Meaning: To 'extract' means to remove or obtain something from a source, in this case, the genome from the bones.

Wrong options:

• revealed: 'Revealed' does not fit here as it pertains to disclosing information rather than obtaining it from a source.
• linked: 'Linked' does not fit as it implies a connection rather than the action of obtaining genetic material.
• surrounded: 'Surrounded' is unrelated as it refers to being encircled, which does not apply to the context of obtaining genomes.
• drafted: 'Drafted' is irrelevant as it pertains to creating documents, not obtaining genetic information.
• delved: 'Delved' implies investigation but does not convey the action of obtaining the genome.

Correct answer: linked

Explanation: The word 'linked' is the past tense of 'link,' which fits grammatically as it describes the relationship between the individual and Native Americans. It aligns with the context of genetic connections.

Meaning: To be 'linked' means to be connected or associated with someone or something, in this case, the individual with Native Americans.

Wrong options:

• revealed: 'Revealed' does not fit as it pertains to disclosing information rather than establishing a connection.
• extracted: 'Extracted' is unrelated as it refers to obtaining something, not describing a relationship.
• surrounded: 'Surrounded' does not apply as it refers to encirclement, which is not relevant to genetic relationships.
• drafted: 'Drafted' is irrelevant as it pertains to document preparation, not genetic connections.
• delved: 'Delved' implies investigation but does not convey the idea of being connected or associated.