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TLS Online TPP Program

#Question id: 6957

The effect of grafting an extra piece of notochord into a dorsal position adjacent to pre-somitic mesoderm is

#Unit 5. Developmental Biology
  1. the pre-somitic mesoderm will degenerate
  2. somites will form but fail to differentiate
  3. signals from the notochord will convert presumptive dermomyotome into sclerotome
  4. the somite will be converted almost entirely to muscle-forming cells
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TLS Online TPP Program

#Question id: 1819

#Unit 4. Cell Communication and Cell Signaling

The largest number of deaths from infectious diseases are caused by:
TLS Online TPP Program

#Question id: 3789

#Unit 3. Fundamental Processes

What do telomeres do?
TLS Online TPP Program

#Question id: 26360

#Unit 2. Cellular Organization

In the yeast the isolation of double mutants can be analyzed by
TLS Online TPP Program

#Question id: 10209

#Unit 6. System Physiology – Plant

Protection against photodamage is a multilevel process, excited state of chlorophyll is not rapidly quenched by photochemistry it can react with molecular oxygen to form toxic photoproducts such as as singlet oxygen (1 O2*) what can damage if this second line of defense also fails to eliminate the reactive photoproducts?
TLS Online TPP Program

#Question id: 31275

#Unit 2. Cellular Organization

At which phase of mitosis, APC/C Cdc20 targets securin for degradation?