TLS Online TPP Program

#Id: 1021

#Unit 5. Developmental Biology

The vertebrate ectoderm, has 3 major responsibilities:

1. One part will become the neural plate

2. One part will become the epidermis

3. One part will become the neural crest

TLS Online TPP Program

#Id: 1248

#Unit 7. System Physiology – Animal

Before puberty, growth hormone excess causes gigantism

TLS Online TPP Program

#Id: 1840

#Unit 11. Evolution and Behavior

Quaternary- Extinctions of large mammals, and birds; evolution of Homo sapiens, spread out of Africa

TLS Online TPP Program

#Id: 927

#Unit 13. Methods in Biology

TUNEL method uses TdT to add BrdU to fixed and permeabilized cells which can only incorporated into fragmented DNA of apoptotic cells.

TLS Online TPP Program

#Id: 567

#Unit 2. Cellular Organization

The lac operon has three paradoxes

1-If the operon is in a repressed state, how does the inducer enter the cell to start the process of induction

2- If the operon is in a repressed state, how Repressor is removed with allolactose 

3- How is allolactose synthesized in Repressed state Answer is Leaky Expression