Unless you stain a cell each organelle is more or less colour-less. Under the microscope the nucleus might appear a little bit darker.
you have a heart
the color of a animals nucleus is purple.
Sweet onions are typically a light golden or pale yellow color. They can be distinguished from other types of onions by their mild and sweet flavor, as well as their lower sulfur content which reduces the pungent odor and sharp taste commonly associated with onions.
brown and purple
purple-the nucleus' color has not yet been "for sure" determined. the nucleus has no specific color because different scientists see it differently through different microscopes. also the color of the nucleus depends on the textbook , book , newspaper or internet page you are looking at.
They look like almost the color of onions,
Red skin potatoes, red onions.
You pick onions during the quest "Goblin Deplomancy". You pick them for a cirten type of dye color. I'm not sure but I think its for yellow dye.
Sweet onions are typically larger in size compared to regular onions and have a lighter color with a thin, papery skin. They have a mild, sweet flavor and are often round or slightly flattened in shape.
why aren't onions green Because onion bulbs are produced underground as storage of food. Being away from sunlight, the onion scales lack chloroplasts ( the green color pigment ) hence onions are not green.
A nucleus is not coloured. Usually they are black. Blackis not a colour, it is a tint.
Purple onions and red onions are similar in taste and appearance, both having a mild and slightly sweet flavor. However, red onions are slightly milder than purple onions. In terms of appearance, purple onions have a deeper purple hue compared to the brighter red color of red onions. Culinary uses for both onions are similar, with red onions being preferred for raw applications like salads and sandwiches due to their milder flavor, while purple onions are often used in cooked dishes for their stronger taste.