The trp operon in E. coli regulates genes that code for enzymes required for synthesis of the amino acid tryptophan. The trp operon is a repressible operon. When tryptophan is not available in the environment, the trp repressor protein is _. Therefore, RNA polymerase can bind to the _ to begin transcription. Answers:
1. inactive
2. promoter

I hope this helps.

i think the miocene epoch spans the time from 23 million to 12 million years ago.

answer; i do believe that the correct answer is; ///mendelian genes are at specific loci on the chromosome and, in turn, segregate during meiosis;

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)