Ginny genestudy performs the following experiment. she wants to replicate a test strand of dna using wildtype of saccharomyces cerevisiae (budding yeast) and two mutants which she calls poor-rep1 and poor-rep2. she performs the experiment with her wildtype strain, and her test dna strand replicates perfectly. she does the same experiment with poor rep-1 and discovers that this strain can only synthesize the dna strand if she adds a purified wildtype dna polymerase-a exogenously. when she performs the experiment with poor rep-2 she discovers that adding wildtype dna polymerase-a has no effect. which of the following scenarios is a possibility for the poor rep-1 and poor rep-2 strains.

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."

the sun creates it's own light, also gives light and life to bunch of stuff like plants,animals,humans etc.photosyntesis is the process of making food which needs sun,water,nutrients etc.