What is the resting membrane potential of the sinus nodal fibers?

TLS Online TPP Program

#Question id: 3654

#Unit 3. Fundamental Processes

Cleavage of the cyclobutane ring of pyrimidine dimers by ______________ restores the original DNA structure.

TLS Online TPP Program

#Question id: 594

#Unit 1. Molecules and their Interaction Relevant to Biology

The catalytic proficiency of an enzyme is the ________.

TLS Online TPP Program

#Question id: 310

#Unit 1. Molecules and their Interaction Relevant to Biology

Ionic bonds easily form when electron when ionization energy of the metallic atom is _____ comparatively.

TLS Online TPP Program

#Question id: 8900

#Unit 9. Diversity of Life Forms

Which of the following statements about craniates is (are) correct?

1. Craniates are more highly cephalized than are non-craniates.

2. Craniatesʹ genomic evolution includes duplication of clusters of genes that code for transcription factors.

3. The craniate clade is synonymous with the vertebrate clade.

4. Pharyngeal slits that can assist in gas exchange originated in craniates,

5. The two-chambered heart originated with the early craniates.

TLS Online TPP Program

#Question id: 5250

#Unit 8. Inheritance Biology

A researcher would like to map the location of galE and trpA genes in a new species of bacterium that appears to be closely related to E. coli. He decides to use cotransduction, and generatesnappropriate donor and recipient strains. He is disappointed when cotransduction is not seen in his experiement. What is the most reasonable explanation for this situation?