In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.
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Question: Maqui berry (Aristotelia chilensis) and the constituent delphinidin glycoside inhibit photoreceptor cell death induced by visible light.

Answer: photoreceptor


Question: In vivo activity of the potent oxytocin antagonist on uterine activity in the rat.

Answer: oxytocin


Question: The fidelity of transcription: RPB1 (RPO21) mutations that increase transcriptional slippage in S. cerevisiae.

Answer:
RPB1