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TLS Online TPP Program

#Question id: 11131

Which statement concerning the generation of an action potential is correct?

#Part-B Specialized Branches in Biotechnology
  1. When the membrane potential in the soma/axon hillock dips below “threshold,” an action potential is initiated
  2. The action potential is initiated in synaptic boutons
  3. The least number of voltage-gated sodium channels in an axon is found near the node of Ranvier
  4. Once an action potential is initiated, it will always run its course to completion
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TLS Online TPP Program

#Question id: 8927

#Part-A Aptitude & General Biotechnology

Arthropods invaded land about 100 million years before vertebrates did so. This most clearly implies that
TLS Online TPP Program

#Question id: 8927

#Part-B Specialized Branches in Biotechnology

Arthropods invaded land about 100 million years before vertebrates did so. This most clearly implies that
TLS Online TPP Program

#Question id: 8927

#Part-B Specialized Branches in Biotechnology

Arthropods invaded land about 100 million years before vertebrates did so. This most clearly implies that
TLS Online TPP Program

#Question id: 8928

#Part-A Aptitude & General Biotechnology

An adult animal that possesses bilateral symmetry is most certainly also
TLS Online TPP Program

#Question id: 8929

#Part-B Specialized Branches in Biotechnology

An obsolete taxon, the ʺRadiata,ʺ included all phyla whose adults had true radial symmetry. Today, the ʺRadiataʺ is more correctly considered to be
1. a clade.
2. a grade.
3. monophyletic.
4. paraphyletic.
5. polyphyletic.
TLS Online TPP Program

#Question id: 8930

#Part-B Specialized Branches in Biotechnology

Soon after the coelom begins to form, a researcher injects a dye into the coelom of a deuterostome embryo. Initially, the dye should be able to flow directly into the