Câu 113. Một operon Lac ở E. coli, khi môi trường không có lactôzơ nhưng enzim chuyển hóa lactôzơ vẫn được tạo ra là do đâu

most likely to see nocturnal animals

what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.

the elements of art are the visual tools that the artist uses to create a composition. these are line, shape, color, value, form, texture, and space.

the principles of art and design are balance, contrast, emphasis, movement, pattern, rhythm, and unity/variety.

maybe because its impossible for balloons to lift a whole entire house.