Chapter 23, Problem 12RQ

To determine

The location of deoxyribonucleic acids in cell.

Answer to Problem 12RQ

The deoxyribonucleic acids are found in the nucleus of the cell.

Explanation of Solution

The nucleus is a huge and is centrally localised cellular component in the cell which is spherical in shape. It is surrounded by the two nuclear membranes which results in the formation of a nuclear envelope.

The chromatin material present in the nucleus is a kind of thin and a thread like intertwined mass of chromosome material which is composed of genetic substance that is deoxyribonucleic acids. The chromatin is formed of repeating subunits, the nucleosomes, each consist of DNA molecule coiled around a disc of histones.

Conclusion:

The deoxyribonucleic acids are found in the nucleus of the cell. The thin and thread like intertwined mass of chromosome material inside the nucleus is composed of DNA molecules.