Across
- 1. What splices together the short segments of the discontinuous strand?
- 5. extra copy of all or part of chromosome
- 8. tube-like excretory structures that filter body fluid
- 10. *two words* reads along each naked single strand adding the complementary nucleotid
- 11. innermost germ layer, develops into linings of digestive tract/respiratory system
- 12. middle layer, develops into muscle, most of circulatory, reproductive, excretory system
- 14. making RNA from a sequence of DNA bases
- 15. *two words* What is a gene mutations that involve changes in one or a few nucleotides
- 17. proteins are built on ribosomes, which are made of two subunits made up of ribosomal RNA molecules
- 18. What is a nucleic acid that consists of a long chain of nucleotide?
Down
- 2. bubble like structures that provide an enormous amount of surface area
- 3. chemical or agent in the environment that cause mutation
- 4. chordates with a backbone
- 6. What are long chains of amino acids called?
- 7. untwists the double helix and exposes complementary strands
- 9. part of chromosome breaks off and attaches to another
- 13. outermost layer, produces organs, nerves, and the outer layer of skin
- 15. tube connecting the mouth and esophagus
- 16. receives oxygen poor blood