TLS Online TPP Program

#Question id: 8712


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?

#Unit 9. Diversity of Life Forms
  1. conserved regions of nuclear DNA
  2. mitochondrial DNA
  3. amino acids in proteins
  4. ribosomal RNA
More Questions
TLS Online TPP Program

#Question id: 28401

#Unit 5. Developmental Biology

The Nieuwkoop centre is formed on the dorsal side of the embryo due to accumulation of beta-catenin which helps activate gene encoding protein, these protein known as____

TLS Online TPP Program

#Question id: 28402

#Unit 5. Developmental Biology

A cell that high level of β-catenin with high concentration of nodal related protein and also have vegT and vg1 expression that type of cell undergo to the formation of which structure?

TLS Online TPP Program

#Question id: 28403

#Unit 5. Developmental Biology

A cell that low concentration of nodal related protein and also have vegT and vg1 expression that type of cell undergo to the formation of which structure?

TLS Online TPP Program

#Question id: 28404

#Unit 5. Developmental Biology

Siamois and Twin transcriptional factor inducing the activation of the neuroepithelium genes, these genes are____

TLS Online TPP Program

#Question id: 28405

#Unit 5. Developmental Biology

BMP inhibitors secreted by the organizer that involve to inhibiting the expression of BMP at the dorsal side of the embryo, these organizers are____

TLS Online TPP Program

#Question id: 28406

#Unit 5. Developmental Biology

Noggin is a secreted protein that is able to accomplish two of the major functions of the organizer, such function involve__ 
a) It induces dorsal ectoderm to form neural tissue
b) It induces dorsal ectoderm to form epidermal tissue
c) It dorsalizes mesoderm cells that contribute to the ventral mesoderm
d) It dorsalizes mesoderm cells that contribute to the dorsal most mesodermal cell