Nucleosomes are the building blocks which make up chromosomes. They consist of a segment of DNA wound around a histone protein core.
First, DNA and a protein make up chromatin. Then the chromatin is packed up into nucleosomes. Nucleosomes are then packaged up to make a chromosome. The packages do three things: the chromosomes function in cell division; the very long DNA is wrapped up in a shorter package; and the proteins regulate the gene action in cells.
A: Nucleosomes are the building blocks that make up chromosomes. They consist of a segment of DNA wound around a histone protein core.
A: Chromatin is a substance that consists of DNA and a protein.
A: Chromatin is packed up to form nucleosomes.
A: The packages of nucleosomes do three things: they function in cell division, they wrap up the very long DNA in a shorter package, and they regulate the gene action in cells.
A: The function of chromosomes in cell division is to ensure the equal distribution of genetic material between daughter cells.
A: Histone proteins act as a core around which a segment of DNA is wound to form a nucleosome.
A: Proteins play a role in regulating gene action in cells by helping to control the expression of genes.
