<span>Genes.Genes are the working unit of the hereditary character of DNA. Genes act as instructions usually coding for a particular protein or function. One form of gene which are called alleles <span>determines the traits that can be passed on from parents to offspring.</span></span>
You have to measure the distance between them
1. Nucleus
2.Different
3. Size
4. Adapted
5. Body
6. Job
7. Better