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TLS Online TPP Program

#Question id: 5557

The plasma membrane of the sea urchin egg ________.

#Unit 5. Developmental Biology

  1. is outside of the fertilization membrane

  2. releases calcium, which initiates the cortical reaction

  3. has receptor molecules that are specific for binding acrosomal proteins

  4. is a mesh of proteins crossing through the cytosol of the egg

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TLS Online TPP Program

#Question id: 4658

#Unit 11. Evolution and Behavior

Members of two different species possess a similar-looking structure that they use in a similar fashion to perform the same function. Which information would best help distinguish between an explanation based on homology versus one based on convergent evolution?
TLS Online TPP Program

#Question id: 19186

#Unit 13. Methods in Biology

In another method of quantitative PCR, reporter-quencher set up is used. Which of the statement holds true for this methodology?
TLS Online TPP Program

#Question id: 16488

#Unit 12. Applied Biology

Advantages of organ culture are
TLS Online TPP Program

#Question id: 20324

#Unit 4. Cell Communication and Cell Signaling

What is the main difference between Gram positive and Gram-negative quorum sensing mechanism?
TLS Online TPP Program

#Question id: 8896

#Unit 9. Diversity of Life Forms

Chordate pharyngeal slits appear to have functioned first as