Genes are fascinating micro-organisms! Even though they're small they are one of the most important aspects of life! Genes are a type of instruction manual for our bodies. They're responsible for our inner-appearance and outer-appearance although not for our personalities. Genes are also responsible for evolution because apes passed their changing genes to their off-springs. Genes prove that even the most miniscule things can make the biggest of differences!!!
Links
What are Genes? + Genetic Diseases