The level of DNA packaging brought about by the formation of nucleosomes looks like beads on a string.
<span> The DNA packaging process includes and describes how DNA is packaged so tightly into chromosomes and squeezed into a tiny nucleus.</span><span>
A </span>nucleosome<span> is a section of </span>DNA that is wrapped around a core of proteins.
Metaphase leads to anaphase, during<span> which each chromosome's sister </span>chromatids separate<span> and move to opposite poles of the cell. Enzymatic breakdown of cohesin — which linked the sister </span>chromatids<span> together</span>during<span> prophase — causes this separation to occur.
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Answer:
Cretaceous
rex live? T. rex lived about 66–68 million years ago during the Cretaceous Period in the western United States, including Montana and Wyoming.
Explanation:
A because plants need the sun in order to live
It’s white blood cells they help fight off any virus or disease
