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TLS Online TPP Program

#Question id: 3742

The general excision repair pathway for DNA repair has the following order:

#Unit 3. Fundamental Processes

  1. endonuclease cuts → helicase or endonuclease removes → DNA polymerase → DNA ligase

  2. DNA ligase → DNA polymerase → helicase or endonuclease removes → endonuclease cuts

  3. endonuclease cuts → DNA polymerase repairs → helicase opens up → DNA ligase

  4. endonuclease cuts → DNA ligase removes → endonuclease removes → DNA ligase

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TLS Online TPP Program

#Question id: 7107

#Unit 5. Developmental Biology

What would be the effect on the timing of somite formation, if a piece of the pre-somitic mesoderm of a chick embryo is rotated by 180° and reinserted in its original position?
TLS Online TPP Program

#Question id: 19365

#Unit 13. Methods in Biology

Which vectors carry the longest foreign DNA fragments?
TLS Online TPP Program

#Question id: 2394

#Unit 2. Cellular Organization

Cyanide binds with at least one molecule involved in producing ATP. If a cell is exposed to cyanide, most of the bound cyanide is likely to be localized within the ________.
TLS Online TPP Program

#Question id: 492

#Unit 1. Molecules and their Interaction Relevant to Biology

In humans, gluconeogenesis:
TLS Online TPP Program

#Question id: 7042

#Unit 5. Developmental Biology

Potentiating the effect on phenotypic variation, when normal zebrafish of the same age, zebrafish embryos exposed to ____X____ the larvae develops with severe developmental anomalies, including reduction in the size of head, gill, and thoracic cartilages associated with cranial neural crest migration. What is X?