Farfesa Wanjohi, ‘yar kasar Kenya bayan karatunta na farko, ta wuce Jami’ar Kenyatta inda ta samu digirin digirgir na B.Ed, M.Sc da Ph.D. digiri. A cikin 1989, ta shiga jami'ar Kenyatta kuma ta yi girma har zuwa matsayi na yanzu na cikakken farfesa na ilimin cututtukan tsirrai. A halin yanzu Farfesa Wanjohi shine Ag. Mataimakin shugaban jami'ar Kenyatta da kuma mataimakin shugaban Kwalejin Kimiyya ta Kenya
Farfesa Wanjohi ta kasance kan gaba wajen inganta tsarin Kimiyya ta hanyar sabbin tsare-tsare daban-daban da kuma jagoranci daban-daban da ayyukan gudanarwa a ciki da wajen Kenya. Waɗannan gudunmawar sun sa ta sami karɓuwa a cikin ƙasa da ƙasa; tana a Fellow na Royal Society of Biology; a Fellow na Kwalejin Kimiyya ta Kenya; Babban Bincike na Fulbright Fellow; wani Fellow -Matan Afirka a Bincike da Ci Gaban Aikin Noma (AWARD) kuma Gidauniyar Falling Walls da ke Jamus ta amince da su a matsayin ƙwararren masanin kimiyya. A cikin 2020, Farfesa Wanjohi na daga cikin masana kimiyyar mata guda 20 da suka fito a cikin littafin "Ingantacciyar shigar da 'yan mata a cikin STEM: Labarun Inspiring na Masana Kimiyyar Mata na Afirka" wanda Forum for African Women Educationist (FAWE) ya buga. An nada ta a matsayin mai ba da shawara ga masana kimiyyar aikin gona na mata masu tasowa.
An sabunta wannan shafin a cikin Mayu 2024.
