Which of the following is the best explanation of what initiated this cell to express the gene for the piece of mRNA shown? It has the DNA coding for the mRNA. It has received a signal to activate expression. A phosphate has bonded to the transcription factor. A phosphorylation cascade has occurred.

answer; i believe that the correct answer is(d) nondisjunction during meiosis;

b is the best answer for this question.

search in internet u can get it

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.