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biology rna and dna
Term | Definition |
---|---|
transcription | the process where the DNA sequence in a gene is copied into mRNA |
translation | mRNA leaves the nucleus to the cytoplasm where rRNA is to be decoded |
DNA polymerase | enzyme that is needed for transcription |
mRNA | code for making amino acid |
tRNA | carries amino acids from the cytoplasm to the ribosomes |
rRNA | forms polypetides which are the site of protein synthesis produced in the ribosomes in the cell |
codon | 3 based sequence on mrna codes for amino acid |
amino acid | building blocks for protein synthesis |
what is the first step for protein syntheis | transcription |
2nd step | translation |
what are the 2 main steps in protein synthesis | transcription and translation |
what is the sugar in RNA | ribose |
sugar for DNA | deoxyribose |
DNA pairings | A-T G-C |
RNA pairings | A-U G-C |
1st step in dna replication | it unzips dna helicase breaks down h- bond |
where is the enzyme located | nucleus |
where is the DNA polmerase located | nucleus |
2nd step in replication | uses the free floating nucleotides to build the new strands from the old strands |
3rd step | the ligase rechecks if everything is correct |