Based on the video, what is the function of tRNA molecules? tRNA molecules copy the information contained in DNA.
tRNA molecules bring amino acids for the ribosome to link together.
tRNA molecules move proteins out of the cell.
tRNA molecules move along a section of DNA and unzip it.

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tRNA molecules bring amino acids for the ribosome to link together.

Explanation:

"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 answer is :