Biology

5. organelle which proteins are made
6. single stranded nucleic acid used by cells.
7. gene mutation- when a base is added or deleted +changes all amino acids after the mutation
8. 3 letter section of trna that matches a codn
12. mutation- gene mutation when a base is substituted only changes 1 amino acid.
14. strand replicating strand of dna that adds nucleotides moving toward helicase.
15. monomer of nucleic acids made of a sugar +nitrogen base
17. enzyme used to unzip the DNA molecule during DNA replication.
19. strand- replication strand of DNA that adds nucleotides moving away from helicase.

1. 1st step of protein synthesis takes place in the nucleus
2. macromolecule of amino acids
3. mutation- type of mutation that changes whole sections of chromosome by adding or deleting and bases.
4. refers to DNA histone protein that made up chromosomes.
9. 3 letter structure of MRNA that codes for amino acid
10. strand of RNA created during transcription- each 3 letter section is a codon.
11. acid- monomer of a protein- these are carried by tRNA molecules during transcription
13. 2nd step of protein synthesis takes place at the ribosome.
16. replication- making a copy of DNA- occurs in s phase
18. double stranded nucleic acid that has all the genetic material
20. mutations- type of mutation that only affects any gene by substituting or and any base