Answer:
nucleus
Explanation:
In organisms called eukaryotes, DNA is found inside a special area of the cell called the nucleus. Because the cell is very small, and because organisms have many DNA molecules per cell, each DNA molecule must be tightly packaged. This packaged form of the DNA is called a chromosome.
heredity is when a certain trait is passed down from human to there children or how animals have offspring and raise them. it works the same for any speciesis including humans. for example if your mother has blue eyes and your father brown you may get one of theirs or you may get a mix of their colors and you may even get your grandparents eye colors. same with mice it may be two brown mice and most likely they would produce brown offspring
another example for humans is my parents both hve dark hair but my dad had blone hair when he was younger and so did his mom so i ended up getting a mix of blonde hair with brown! hope this helps!!
Organism: the Definition is online “ A living thing, whether made of one cell (like bacteria) or many cells (like a human), is called an organism