Answer:
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Other Info That Might Help:
In contrast, in eukaryotes, all of the cell's chromosomes are stored inside a structure called the nucleus. Each eukaryotic chromosome is composed of DNA coiled and condensed around nuclear proteins called histones. Humans inherit one set of chromosomes from their mother and a second set from their father.
In the atmosphere mostly as carbon dioxide.
C. I, II and III Because when these rocks which are also known as protolith are subjected to heat ( temperatures 150 to 200°C) and pressure ( 150 MPa) , they can be made into metamorphic rocks.
