Across
- 5. observable characteristics of an organism
- 6. organism's genetic inheritance
- 7. affects that 18th site in the chromosomes
- 8. age where the preterm baby can survive outside of the uterus
- 10. affects the 21st site in the chromosomes
- 14. the first major epigenetic influence on genes
- 15. the entire packet of instructions to make living organisms
- 16. the third through eighth week after conception
- 17. 1 zygote that splits apart
- 18. what occurs when two gametes combine
Down
- 1. more influential than recessive genes
- 2. the ninth week of the pregnancy until birth
- 3. the pair that determines gender
- 4. includes all microbes that have their own DNA
- 6. the first 14 days after conception
- 9. reproductive cells
- 10. 2 separate ova are fertilized by two separate sperms
- 11. can silence or amplify human genes
- 12. variation of a gene
- 13. affects the 13th site in the chromosomes