Liquid's monologue on genetic engineering is scientifically comprehensible, however the technical terminology is misused. For example, when discussing phenotypes, it would be correct to discuss dominant and recessive traits, rather than dominant and recessive genes as Liquid does. "Analogue cloning" and "digital cloning" are not real scientific terms, however this is excusable given the game's science-fictional setting.
When Naomi calls Snake and says "Campbell and the others are busy right now, I'm using a different codec". The player's codec reports that she's calling from the same frequency. However this still makes sense: it's possible to have several radio handsets using the same frequency.