What proteins bind to silencer sequences, forming a protein "bridge" that bends the DNA over the promoter and prevents transcription?

What will be an ideal response?


repressor proteins

Biology & Microbiology

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Many genes in the human genome are no longer expressed because mutations have introduced stop codons within the coding sequence or transposons have disrupted gene function. These genes are now considered

A. pseudogenes. B. orthologs. C. homologues. D. paralogs.

Biology & Microbiology

Ribosome movement along the mRNA is called

A. activation. B. replication. C. transcription. D. initiation. E. translocation.

Biology & Microbiology

Preservation of food to limit microbial survival and growth includes

A) High temperature B) Refrigeration and freezing C) All of these choices are correct D) Irradiation E) Pasteurization

Biology & Microbiology

Which of the following is not an amino acid?

A. glycine B. uracil C. valine D. alanine E. tryptophan

Biology & Microbiology