First we must specify if we're talking about prokaryotic or eukaryotic cells.
Prokaryotic cells, mostly bacteria, organize their DNA in a loop. The "subunits" of DNA are Nucleotides. These are called Adenine, Thymine, Cytosine and Guanine. These four are the building blocks common to all DNA.
Now eukaryotic cells (most plants and animals) pack their DNA in a different way. In general: Long DNA "chains" (strands), built with the same nucleotides previously mentioned, are wrapped together by helper proteins called histones, which help pack DNA tightly together in the form of chromosomes.
iron and protein
The monomer used to make polybutene is isobutylene. It undergoes polymerization to form the long chain polymer known as polybutene.
This is a polysaccharide.
The Great Barrier Reef stretches from Rockhampton northwards along the east coast Queensland and a little beyond.
The name "streptococcus" tells you that the bacteria are arranged in a chain-like structure, with individual cells attached to one another. "Strepto" means twisted or coiled, and "coccus" refers to spherical cells.
iron and protein
Mid-Atlantic chain
reduction
The monomer used to make polybutene is isobutylene. It undergoes polymerization to form the long chain polymer known as polybutene.
A flail
This is a polysaccharide.
The Great Barrier Reef
yes
Do you mean The Great Barrier Reef?
Do you mean The Great Barrier Reef?
In the word "chain," the vowel sound is considered a long vowel. The letter "a" in "chain" is pronounced as /eɪ/, which is the long vowel sound for the letter "a." This is because it says its name, rather than a short sound like in "cat" or "mat."
The Andes.