San Francisco — A member of Uber’s board of directors apologized for a sexist remark he made at a meeting with Uber employees on Tuesday, the latest embarrassing misstep for a company rocked by scandal and discord.

David Bonderman, the founding partner of the private equity firm TPG Capital, apologized in an email to Uber employees for his comments, which came in the middle of a companywide meeting at Uber’s San Francisco headquarters. The meeting was called to discuss the results of an investigation into Uber’s toxic culture, marked by allegations of sexism and harassment.

Mr. Bonderman’s comments came after Arianna Huffington, another independent board member at Uber, was in the midst of discussing the addition of a new female member on the company’s board of directors.

“There’s a lot of data that shows when there’s one woman on the board, it’s much more likely that there will be a second woman on the board,” Ms. Huffington said.

“Actually, what it shows is that it’s much more likely to be more talking,” Mr. Bonderman responded.

Mr. Bonderman’s remark left people aghast, according to attendees.

“I want to apologize to my fellow board member for a disrespectful comment that was directed at her during today’s discussion,” Mr. Bonderman said in the email. “It was inappropriate. I also want to apologize to all Uber employees who were offended by the remark. I deeply regret it.”

The episode is yet another black eye for the embattled ride-hailing company, which is struggling to change its internal culture and a public image largely perceived as aggressive, rule-breaking and misogynistic. An Uber spokesman declined to comment.

During the meeting on Tuesday, several board members spent the better part of an hour addressing recommendations from a report compiled by Eric H. Holder Jr., the former attorney general, and his law firm, Covington & Burling, on the corrective actions Uber must take to repair itself.

But the difficulties of changing Uber’s culture were on display in the meeting, highlighted by Mr. Bonderman’s comments. At one point, he reminded employees of the scrutiny Uber employees would face in the world.

“Each of you is responsible for the conduct of the company,” he said.