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TLS Online TPP Program

#Question id: 5078

A human blastomere is:

#Unit 5. Developmental Biology

  1. an embryonic cell that is smaller than the ovum

  2. an embryonic structure that includes a fluid-filled cavity

  3. that part of the acrosome that opens the egg's membrane

  4. a cell that contains a (degenerating) second polar body

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TLS Online TPP Program

#Question id: 5291

#Unit 8. Inheritance Biology

A number of nutritional mutant strains were isolated from wild-type Neurospora that responded to the addition of certain supplements in the culture medium by growth ( + ) or lack of growth ( -). Given the following responses for single gene mutations, diagram a metabolic pathway that could exist in the wild-type strain that is most consistent with the data. Indicate where the pathway is blocked in each mutant strain.
TLS Online TPP Program

#Question id: 27379

#Unit 1. Molecules and their Interaction Relevant to Biology

Atomic radii can be measure by calculation
TLS Online TPP Program

#Question id: 19270

#Unit 9. Diversity of Life Forms

the result of heterospory is 
TLS Online TPP Program

#Question id: 12138

#Unit 10. Ecological Principles

The oak tree pathogen Phytophthora ramorum has migrated 650 km in ten years. West Nile virus spread from New York State to 46 others states in five years. The difference in the rate of spread is probably related to
TLS Online TPP Program

#Question id: 1261

#Unit 4. Cell Communication and Cell Signaling

A FOXO3a mutant in which the three serine residues that are targets for PKB are mutated to alanine then what will be the result?