“…In fact, many previous studies have examined the 21 st century skills for prospective biology teachers in public universities. The writers found a number of previous studies that have studied about 21 st century skill for prospective biology teachers in public universities, such as critical thinking (Maryuningsih et al, 2019;Fitriani et al, 2019), metacognitive (Chang et al, 2020;Listiana et al, 2016), ICT (Aslan & Zhu, 2017), problem-solving (Nawani et al, 2019), generic science skill (Haviz et al, 2018), and creativity (Lucas, 2016). Maryuningsih et al (2019) conducted quasi-experimental research to investigate the level of critical thinking skills (CTS) of 37 PBTs through online genetic discussion forums, and the results of the research showed that the level of critical thinking skills of PBTs increased based on the nature of chromosome inheritance learning through online discussion forums.…”