1/2 of a radioactive substance will remain after 3 half lives.
Transcription is the process<span> by which </span>DNA<span> is </span>copied<span> (transcribed) to mRNA, which carries the information needed for protein synthesis. Transcription takes place in two broad steps. First, pre-messenger </span>RNA<span> is </span>formed<span>, with the involvement of </span>RNA<span>polymerase enzymes.</span>
Answer:
asexual reproduction through budding in the leaf
Transport protein cytoskeleton microtubule
