Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 9942
TLS Online TPP Program

#Question id: 13159

How signaling is involved in ensuring that yeast cells fuse only with cells of the opposite mating type?

#Unit 4. Cell Communication and Cell Signaling
  1. The two cells of opposite mating type (a and alpha) each secrete a certain signaling molecule, which can only be bound by receptors carried on cells of the opposite mating type. Thus, the a mating factor cannot bind to another a cell and cause it to grow toward the first a cell. Only an alpha cell can “receive” the signaling molecule and respond by directed growth.
  2. The two cells of opposite mating type (a and alpha) each secrete a certain signaling molecule, which can only be bound by receptors carried on cells of the same mating type. Thus, the a mating factor can bind to another a cell and cause it to grow toward the first a cell.
  3. The two cells of opposite mating type (a and alpha) each proteins attached to the plasma membrane of one cell can interact directly with cell-surface receptors on adjacent cells. Thus, the a mating factor can directly bind to another a cell and cause it to grow.
  4. The two cells of opposite mating type (a and alpha) each respond to substances that they themselves release.
More Questions
TLS Online TPP Program

#Question id: 23855

#Unit 13. Methods in Biology

Dideoxyribonucleotide chain-termination is a method of
TLS Online TPP Program

#Question id: 23856

#Unit 13. Methods in Biology

DNA microarrays have made a huge impact on genomic studies because they
TLS Online TPP Program

#Question id: 23857

#Unit 13. Methods in Biology

Which was developed by a British researcher and causes DNA sequences to be transferred to a membrane and identified with a probe?
TLS Online TPP Program

#Question id: 23858

#Unit 13. Methods in Biology

Which describes the transfer of polypeptide sequences to a membrane to analyze gene expression?
TLS Online TPP Program

#Question id: 23859

#Unit 13. Methods in Biology

Which uses reverse transcriptase to make cDNA followed by amplification?
TLS Online TPP Program

#Question id: 23860

#Unit 13. Methods in Biology

RNAi methodology uses double-stranded pieces of RNA to trigger a breakdown or blocking of mRNA. For which of the following might it more possibly be useful?