Introduction:
DNA is the genetic material that contains all the information required for the development, function, and reproduction of living organisms. It is present in almost all the cells of an organism, with a few exceptions.

Answer:
DNA is not present in ribosomes. Ribosomes are cellular organelles that are responsible for the synthesis of proteins. They are made up of protein and RNA molecules and do not contain DNA. However, DNA provides the instructions for the synthesis of RNA, which in turn directs the assembly of amino acids into proteins.

DNA is present in the nucleus of eukaryotic cells, which includes animal and plant cells. The nucleus is a membrane-bound organelle that contains the genetic material in the form of chromosomes. Each chromosome is a long DNA molecule wrapped around proteins called histones.

DNA is also present in mitochondria and chloroplasts, which are organelles found in eukaryotic cells that are involved in energy production. Mitochondria are responsible for cellular respiration, while chloroplasts are responsible for photosynthesis. Both organelles have their own DNA, which is separate from the DNA in the nucleus.

Conclusion:
In summary, DNA is not present in ribosomes, but it is present in the nucleus, mitochondria, and chloroplasts of eukaryotic cells. These organelles play important roles in the functioning of living organisms and rely on the genetic information stored in DNA.

DNA is present in the nucleus and semi autonomous organelles like mitochondria and chloroplast. Ribosomes are protein synthesizing organelles which lacks genetic material. Hence correct option is (D)