Question

where is dna stored in eukaryotic cells? options: cell membrane, mitochondria, cytoplasm, nucleus

Explanation:

In eukaryotic cells, the nucleus is the primary storage site for DNA (in the form of chromosomes). The cell membrane is for protection and transport, mitochondria have their own small amount of DNA but not the main genomic DNA, and cytoplasm is the fluid matrix with organelles but not the main DNA storage. So the correct option is Nucleus.

Answer:

D. Nucleus (assuming the options are labeled as A. Cell membrane, B. Mitochondria, C. Cytoplasm, D. Nucleus)