Darwinʹs mechanism of natural selection required long time spans in order to modify species. From whom did Darwin get the concept of Earthʹs ancient age?

#Question id: 3890

#SCPH28 | Zoology

Small signal molecules that regulate transcription are not known to:

#Question id: 3891

#SCPH01 Biochemistry

Protein amino acid side chains can hydrogen bond in the major groove of DNA, and discriminate between each of the four possible base pairs.  In which one of the following groups of amino acids can all three members potentially be used in such DNA-protein recognition?

#Question id: 3891

#SCPH05 I Biotechnology

Protein amino acid side chains can hydrogen bond in the major groove of DNA, and discriminate between each of the four possible base pairs.  In which one of the following groups of amino acids can all three members potentially be used in such DNA-protein recognition?

#Question id: 3891

#SCPH06 I Botany

Protein amino acid side chains can hydrogen bond in the major groove of DNA, and discriminate between each of the four possible base pairs.  In which one of the following groups of amino acids can all three members potentially be used in such DNA-protein recognition?

#Question id: 3891

#SCPH28 | Zoology

Protein amino acid side chains can hydrogen bond in the major groove of DNA, and discriminate between each of the four possible base pairs.  In which one of the following groups of amino acids can all three members potentially be used in such DNA-protein recognition?

#Question id: 3892

#SCPH01 Biochemistry

The DNA binding motif for many prokaryotic regulatory proteins, such as the lac repressor, is: