Protein structural motifs often have general functions in common.  Which one of the following motifs is known to be involved in protein dimer formation, but not in direct protein-DNA interactions?

#Question id: 8709

#SCPH05 I Biotechnology

Eukaryotes that are not closely related and that do not share many anatomical similarities can still be placed together on the same phylogenetic tree by comparing their ________.

#Question id: 8709

#SCPH28 | Zoology

Eukaryotes that are not closely related and that do not share many anatomical similarities can still be placed together on the same phylogenetic tree by comparing their ________.

#Question id: 8710

#SCPH05 I Biotechnology

A phylogenetic tree constructed using sequence differences in mitochondrial DNA would be most valid for discerning the evolutionary relatedness of ________.

#Question id: 8710

#SCPH28 | Zoology

A phylogenetic tree constructed using sequence differences in mitochondrial DNA would be most valid for discerning the evolutionary relatedness of ________.

#Question id: 8712

#SCPH28 | Zoology

The lakes of northern Minnesota are home to many similar species of damselflies of the genus Enallagma. These species have apparently undergone speciation from ancestral stock since the last glacial retreat about 10 thousand years ago. Sequencing which of the following would probably be most useful in sorting out evolutionary relationships among these closely related species?

#Question id: 8713

#SCPH28 | Zoology

Which statement represents the best explanation for the observation that the nuclear DNA of wolves and domestic dogs has a very high degree of sequence homology? Dogs and wolves ________.