Which image shows a cells dna condensed into chromosomes? a or b?

Double-stranded DNA loops around 8 histones twice, forming the nucleosome, which is the building block of chromatin packaging. DNA can be further packaged by forming coils of nucleosomes, called chromatin fibers. These fibers are condensed into chromosomes during mitosis, or the process of cell division.

So, your answer is A

the areas around the equator

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.