Place the following in order from smallest to largest:
2 answers:
Answer:
The correct answer would be B) DNA, nucleosome, chromatin, sister chromatid, chromosome
DNA (deoxyribonucleic acid) is a double stranded helical compound present in cells of all living organisms.
The length of the DNA molecule depends upon the type of cell. For example, in humans it contains approximately 3 billion base pairs which makes it around 2 metre long if it stretched along its length.
The width of typical DNA molecule is around 2 nanometre (nm).
The entire length of DNA is tightly packed in the cell with the help of various transitions such as nucleosome, chromatin fibre, sister chromatid, chromosome.
The nuceosome is the called "beads on the string" form of chromatin. It is formed when DNA is wrapped around the histone proteins.
The nucleosomes are then arrange and condensed to form 30 nm chromatin fibre.
The most condensed form of the DNA is the chromosome usually observed in metaphase of dividing cells. It consists of 2 sister chromatids.
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