Final answer:
Title VII of the 1964 Civil Rights Act prohibits discrimination based on race, gender, religion, and national origin, but not age.
Step-by-step explanation:
Title VII of the 1964 Civil Rights Act specifically prohibits discrimination based on several protected characteristics, but it does not include a prohibition on discrimination based on age. The protected characteristics under Title VII are race, gender, national origin, and religion. This landmark legislation aimed to end discrimination in various areas of society, including employment, and later amendments added additional protections such as the Pregnancy Discrimination Act of 1978 which prohibits employment discrimination based on pregnancy.