Recombinant dna technology is used to produce all of the following except a) human insulin. b) cancer fighting drugs. c) new genetic varieties of plants. d) preferred genotypes for human offspring.

Astudent poured a solution of bromothymol blue indicator into three test tubes. then he placed an aquatic plant in two of the test tubes, as shown below. he placed a stopper on each test tube and placed them all in the dark for 24 hours. bromothymol blue turns from blue to yellow in the presence of co2