Final answer:
The grandfather clause allowed illiterate whites to vote based on their ancestors' eligibility, disadvantaging Black individuals due to historical voting restrictions.
Explanation:
The grandfather clause was a provision in some southern states that allowed illiterate whites to vote if their ancestors were eligible to vote prior to the Fifteenth Amendment. This clause disproportionately prevented Black people from voting as their ancestors were enslaved and not allowed to vote before the amendment.
Learn more about Voting rights and discrimination here:
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