Answer: Hey I'm sorry I didn't get to answer your question it's just that I need the points because I don't have enough to get help with my question. I hope you get the answer that you need for you question. Good Luck :)
Explanation:
Chromosome are made of DNA.
alleles are the different forms of a gene that can exist.
chromosomes contain genes that control the inheritance of traits.
streams; they have no organisms i think