Across
- 3. a supposition or a system of ideas intended to explain something
- 5. a set of one maternal and one paternal chromosome
- 6. a self-replicating material which is present in nearly all living organisms
Down
- 1. a structure with no purpose
- 2. remains or impression of a prehistoric organism
- 4. a multicellular diploid eukaryote in an early stage of embryogenesis