Question

1. what organelle contains dna wound up in chromosomal form?

Explanation:

In eukaryotic cells, the nucleus is the organelle that houses the cell's genetic material. DNA within the nucleus is organized into chromosomes during cell division (or in a condensed, chromosomal form at specific stages). Other organelles like mitochondria and chloroplasts (in plant cells) also have DNA, but it's not typically in chromosomal form like in the nucleus. So the nucleus is the organelle with DNA wound up in chromosomal form.

Answer:

The nucleus