VegT is critical in generating the germ cells, two genes activated by VegT protein that encodes the transcriptional factor as well as paracrine factors that instruct the cell layers to become their fate. which of the following statements is incorrect?

a) Sox17 paracrine factor that specify cells to be endoderm

b) Nodal transcription factors that instruct the cell layers above them to become mesoderm

c) Nodal paracrine factors that instruct the cell layers above them to become mesoderm

d) Sox17 transcription factor that specify cells to be endoderm

#Question id: 9609

#Unit 1. Molecules and their Interaction Relevant to Biology

Dozens of potato varieties exist, differing from each other in potato-tuber size, skin color, flesh color, and shape. One might construct a classification of potatoes based on these morphological traits. Which of these criticisms of such a classification scheme is most likely to come from an adherent of the phylocode method of classification?

#Question id: 9609

#Unit 9. Diversity of Life Forms

Dozens of potato varieties exist, differing from each other in potato-tuber size, skin color, flesh color, and shape. One might construct a classification of potatoes based on these morphological traits. Which of these criticisms of such a classification scheme is most likely to come from an adherent of the phylocode method of classification?

#Question id: 9610

#Unit 9. Diversity of Life Forms

The term ʺhomoplasyʺ is most applicable to which of these features?

#Question id: 9611

#Unit 9. Diversity of Life Forms

If, someday, an archaean cell is discovered whose SSU-rRNA sequence is more similar to that of humans than the sequence of mouse SSU-rRNA is to that of humans, the best explanation for this apparent discrepancy would be

#Question id: 9612

#Unit 9. Diversity of Life Forms

The best classification system is that which most closely

#Question id: 9613

#Unit 9. Diversity of Life Forms

Which of the following pairs are the best examples of homologous structures?