Because it can analyze of what we are made of and who were our ancestors by studying our DNA.
The extra step of dissolving the nucleus is needed during DNA replication in a Eukaryota cell, whereas bacteria are prokaryotic and therefore don't have a nucleus so they don't need the extra step. Hope this helps! ^0^ ;)
The correct answer is vestigial.
A vestigial composition is an anatomical characteristic, which no longer appears to exhibit an objective in the present form of an organism of the given species. Usually, these vestigial compositions were organs, which had done some essential activity in the organism at one time in the past.
The examples of human vestigiality are plentiful, involving the anatomical compositions like wisdom teeth, human tailbone, and inside corner of the eye.
Answer:
Negative regulation
Explanation:
In the trp operon, tryptophan binds to the repressor protein, then this complex binds to operator effectively blocking gene transcription preventing the production of enzymes that aids in the synthesis of tryptophan. This happens when high levels of tryptophan is detected. This, it is a repressible/negative type of regulation.
