Question

How does the large amount of DNA fit into the tiny nucleus within the microscopic cells? please be specific ;) thank you

Answer 1

The large amount of DNA fit into the tiny nucleus within the microscopic cells through DNA packaging.

Step-by-step explanation:

DNA packaging is the process where the DNA is packed tightly to fit compactly into the cell nucleus. Initially the DNA begins packaging by wrapping tightly around a protein molecule, histone, and forms complex called nucleosomes.

These nucleosomes are then linked with subsequent one through the linker DNA. This interlinking forms a chain of beads on a string like structure. Next, stacking of nucleosomes and binding to scaffolding protein leads to formation of chromatin fibers.

Then looping, coiling and compaction of the chromatin takes place and chromosome is formed with its unique structure to fit into the cell nucleus

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Answer 2

The DNA is packed in such a way that it fits into the nucleus.

Step-by-step explanation:

The DNA of each chromosome undergoes coiling, compaction and again coiling to fit into the nucleus.

At the primary level, the DNA is packed around a group of proteins called the histones.

The condensed structure that is formed by the process of coiling is called chromatin. The DNA remains in this shape throughout until it has to carry out replication.

The coiling is only unwrapped at the time of replication of the DNA.