Reverse translate from amino acids (protein) to RNA then reverse transcribe to DNA. However, its not exact because there are no introns because they got cut out because they did not code for the protein so you can not get the original strand and also because some amino acids have multiple codons,
The answer is 1). Two Tt parent can produce T and t for 50% separately. So for the result, TT has the probability of 50%*50%=25%. The same for tt. And Tt is 1-0.25-0.25=50%.
D) freshwater is a hypotonic solution, which causes the plant cells to swell because of turgor pressure.
I think the answer is no C coz it creates it's own anti bodies
