Guide
Beadle and Tatum - ANS ✔✔made connections between DNA and protein through experiments
with bread mold
-conclusion-each gene directs production of a specific poly peptide-(genotype determines
phenotype)
Dna vs rna - ANS ✔✔Rna: uracil., ribose, single strand DNA: thymine, deoxyribose,'double helix
3 types of rna - ANS ✔✔messenger rna, ribosomal rna, transfer rna
Messenger rna - ANS ✔✔contains info from dna, encodes the amino acid sequence to be made
ribosomal rna - ANS ✔✔along with protein, makes up ribosomes
transfer rna - ANS ✔✔brings correct amino acid to ribosome according to mrna
what 2 steps are involed in gene expression - ANS ✔✔transcriptiona nd translation
transcription - ANS ✔✔copying info in genes into mrna molecules
translation - ANS ✔✔decoding mrna to make protein
what code does translation use - ANS ✔✔triplet code, 3 base codons