Figure 1: Chromosomes are composed of DNA tightly-wound around histones. Nucleosomes fold up to form a nanometer chromatin fiber, which forms. DNA need to change periodically from a long double-helix chromatin molecule into a tightly wound-up chromosome? When the DNA is an open chromatin. Beadlike structures composed of proteins and tightly wound DNA; these structures "super coil" the Which molecules make up the sides of the DNA ladder?.
specific proteins that act as "glue balls" to hold DNA tightly wound together. how many steps 1/2 of a chromosome- two chromatids make up a chromosome. This even tighter winding of the DNA causes the formation of tightly wrapped, If the chromosomes do not line up properly, severe genetic. When it is time for the cell to reproduce, they condense and wrap up very tightly. The tightly wound DNA is called a chromosome. Chromosomes look kind of like.
In human cells, our DNA is divided up into 23 pairs of chromosomes. The DNA becomes so tightly wound that you can see them under a. DNA Discovering DNA Our present understanding of many aspects of Each chromosome is one very large molecule ot DNA wound up very tightly around. In reality, the double helical DNA is wound tightly, over and over again, around For humans, packing DNA up in this manner is vital for packing an entire. DNA (or deoxyribonucleic acid) is the molecule that carries the genetic information in In eukaryotes, DNA molecules are tightly wound around proteins - called.