Unit 5 Biology

3. single stranded-used in transcription to code for protein-codes.
10. an enzyme that unzips DNA.
11. non-coding DNA and are edited out.
15. adds nucleotides moving away from the fork.
16. each strand acts as a template-each new strand is half old and half new.
17. nitrogen bases are held together with this in the middle.
18. a protein DNA is wrapped around to make a nucleosome-looks like beads on a string.
19. in RNA that replaces the thymine.
20. DNA replication occurs in this phase.

1. adenine, guanine.
2. must be connected together with ligase-happens in lagging strand.
4. thymine (uracil if RNA), cytosine.
5. occurs in the nucleus-creates mRNA strand editing out introns and sends mRNA strand to translation.
6. one strand adds nucleotides moving toward the fork.
7. made of 5-carbon sugar, phosphate, and nitrogen base.
8. occurs in the cytoplasm at a ribosome mRNA codons are matched with tRNA anticodons that hold amino acids, creating the protein.
9. 2 complementary antiparallel strands of nucleotides twisted are called this.
12. codes for proteins/genes and are kept.
13. this is deoxyribonucleic acid-long strand of repeating nucleotides.
14. adds complementary nucleotides to 3' end.