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Criado por Isabella N
quase 7 anos atrás
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Questão | Responda |
Why is there diversity? | Due to mutations in DNA |
DNA does what (3) things w/ info.? | Replicate, store, express |
Genetic material allows for...? | Variations via mutations |
In history, DNA was considered too___ while protein seemed more ___? Why? | Simple; abundant; Since protein has 20 amino acids + DNA has 4 nucleotides |
Griffith's experiment w/ what proved what? | (Dead S strain + live mutant R strain) = kills; DNA has a transforming principle that is heat resistant |
What experiment seen the fixing of nonfunctioning mutant alleles into function copies? | Griffith |
What part of cell was used to pass on genetic info. According to who? | The polysaccharide capsule. Griffith. |
Who demonstrated the transforming principle of DNA by repeating who's experiment? | Avery + colleagues; Griffith |
What did Avery do to prove his theory? | Destroy different components of a cell + found when DNA is destroyed mutant R strains doesn't change |
Who experimented w/ bacteriophages dipped in sulfur + phosphate? | Hershey + Chase |
What did Hershey + Chase prove? | That bacteriophages infect bacteria via inserting its DNA (not protein) |
What does DNA do inside infected bacteria making it hazardous? | Directs viral reproduction |
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