Answer:
approximately 4.5 billion years ago
Explanation:
Answer:
The rapid decolorization with ethanol or acetone
and counterstaining with safranin
When a decolorizer such as alcohol or acetone is added, it interacts with the lipids of the cell membrane. A gram-negative cell loses its outer lipopolysaccharide membrane, and the inner peptidoglycan layer is left exposed: when safranin is added they will turn red. Conversely, gram-positives retain the Cristal violet and will color in purple
<span> Inside its enclosed nuclear membrane, it contains the majority of the cell's genetic material which this material is organized as DNA molecules, along with a variety of proteins, to form chromosomes.</span>
