Here's a breakdown:
* Spooled string of genes: Chromosomes are made up of DNA, which is essentially a long, coiled molecule containing genes.
* Inside the nucleus: Chromosomes are found in the nucleus of eukaryotic cells, which is the cell's control center.
* Rod-shaped: Chromosomes are visible as distinct, rod-shaped structures during cell division.
* Carry genetic code: Genes on chromosomes contain the instructions for building and maintaining an organism, passed down from parents to offspring.
Let me know if you have any other questions about chromosomes or genetics!
