Genetics

explain the structure of the following;
1. DNA
2. Genes
3. Chromosomes
You should describe the mechanism and importance of DNA replication
You should explain the mechanisms of mitosis and meiosis;
1. Explain the events of mitosis and meiosis
2. Compare the products of meiosis and mitosis
3. Explain the importance of meiosis in generating variation.
please make sure you follow the assignment criteria i have attached.