A Missouri bill to ban fetal-tissue donation is up for review in a Senate panel.
A Senate committee on Tuesday is expected to discuss the proposal to prohibit the practice in the state.
The legislation follows the release of undercover videos by anti-abortion activists that they say show Planned Parenthood discussing the sale of fetal tissue.
Planned Parenthood officials have said a St. Louis clinic, currently the only center in the state providing abortions, doesn't participate in such a program.
The bill also would require all tissue from an abortion to be sent to a pathologist for examination. Currently only a tissue sample is required to be submitted.
A House hearing, including a discussion about current and future policies on abortion, is scheduled for later Tuesday.