English to Russian Science Biology (-tech,-chem,micro-)

However, when the two mutations were introduced at the same time, the cell density was reduced to approximately 8%, sucrose assimilation ability was increased to approximately 8%.
(речь идет от 3-го лица мн.ч.). Вводили, производили, осуществляли мутацию и т.д. не звучит. Непонятно.

Спасибо огромное!