Question

Explain how DNA, which is six feet long, can be stored in the nucleus of a tiny human cell.

Answer 1

Answer:

Explanation:

Packed inside the nucleus of every human cell is nearly 6 feet of DNA, which is divided into 46 individual molecules, one for each chromosome and each about 1.5 inches long. Packing all this material into a microscopic cell nucleus is an extraordinary feat of packaging. For DNA to function, it can't be crammed into the nucleus like a ball of string. Instead, it is combined with proteins and organized into a precise, compact structure, a dense string-like fiber called chromatin.

Answer 2

DNA is tightly packed up to fit in the nucleus of every cell.

Explanation:

• A human cell's DNA totals about 3 meters in length.
• The length of DNA is usually defined as a pair of nucleotides referred to as base pairs.
• The length of the DNA segment is calculated by finding the number of base pairs and multiplying it by the distance between adjoining base pairs.
• A DNA molecule in a human chromosome can be up to 250 million nucleotide pairs long.
• DNA molecules are long that they can't fit into cells without the right packaging.
• To fit inside cells, DNA is coiled tightly to form structures called chromosomes.
• Each chromosome contains a single DNA molecule.
• A DNA molecule wraps around histone proteins to form tight loops called nucleosomes. These nucleosomes coil and stack together to form fibers called chromatin.