UProf. Wanjohi, oyisakhamuzi saseKenya ngemuva kwemfundo yakhe encane, wadlulela eNyuvesi yaseKenyatta lapho athola khona i-B.Ed, M.Sc kanye nePh.D. amadigri. Ngo-1989, wajoyina ubuhlakani beNyuvesi yaseKenyatta futhi usekhuphuke wafinyelela esikhundleni samanje sokuba uprofesa ogcwele wezifo zezitshalo. UProf. Wanjohi njengamanje uyi-Ag. Iphini likashansela eNyuvesi yaseKenyatta kanye nePhini likasihlalo iKenya National Academy of Sciences
UProf. Wanjohi ubehamba phambili ekuthuthukiseni i-ajenda yeSayensi ngemizamo emisha ehlukahlukene kanye nasezindimeni zakhe ezahlukene zobuholi kanye nokuphatha ngaphakathi nangaphandle kwaseKenya. Le minikelo izuze ukuqashelwa kwakhe kokubili ezweni nasemhlabeni jikelele; yena u Fellow weRoyal Society of Biology; a Fellow we-Kenya National Academy of Sciences; a Fulbright Senior Research Fellow; ku Fellow -Abesifazane base-Afrika Ocwaningweni Nentuthuko Yezolimo (AWARD) futhi waqashelwa njengoSosayensi ovelele yi-Falling Walls Foundation eJalimane. Ngo-2020, uProf Wanjohi wayephakathi kososayensi besifazane abangama-20 ababevela encwadini ethi “Enhancing girls participation in STEM: Inspiring Stories of African Women Scientists” eshicilelwe yiForum for African Women Educationist (FAWE). Uqokwe njengomeluleki wososayensi besifazane abasafufusa bezoLimo.
Leli khasi libuyekeziwe ngoMeyi 2024.