generative (adj.)

• abiogenetic
• aboriginal
• basal
• basic
• biogenetic
• blastogenetic
• causative
• central
• constructive
• creative
• crucial
• elemental
• elementary
• embryonic
• formative
• fundamental
• gametic
• genetic
• genial
• genital
• genitive
• germinal
• inventive
• original
• originative
• parthenogenetic
• pregnant
• primal
• primary
• primeval
• primitive
• primordial
• pristine
• productive
• radical
• rudimentary
• seminal
• sporogenous