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TLS Online TPP Program

#Question id: 1216

In yeast signal transduction, a yeast cell releases a mating factor, which:

#Unit 4. Cell Communication and Cell Signaling

  1. acts back on the same cell that secreted the mating factor, changing its development

  2. passes through the membranes of neighboring cells, binds to DNA, and initiates transcription

  3. binds to receptors on the membranes of other types of yeast cells

  4. diffuses through the membranes of distant cells, causing them to produce factors that initiate long-distance migrations

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TLS Online TPP Program

#Question id: 342

#Unit 1. Molecules and their Interaction Relevant to Biology

In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by ________.
TLS Online TPP Program

#Question id: 28288

#Unit 5. Developmental Biology

In case of sea urchin, fertilization envelope forms from___
TLS Online TPP Program

#Question id: 28159

#Unit 1. Molecules and their Interaction Relevant to Biology

The given plot and statement are made after performing the DST calorimetry of a protein

a. X represents perfect folding of protein

b. X represents breaking of a bond

c. Y represents perfect folding of protein

d. Y represents perfect breaking of a bond

Which of the following is correct
TLS Online TPP Program

#Question id: 5762

#Unit 8. Inheritance Biology

An individual cell homozygous for a mutant allele of the gene for a human enzyme contains no detectable activity for that enzyme. The mutation is best described as
TLS Online TPP Program

#Question id: 15366

#Unit 4. Cell Communication and Cell Signaling

For pro-proliferation signaling pathways to cause uncontrolled proliferation, as is seen in cancer, this p53 up-regulation must not occur, It is therefore not surprising that p53 is inactive in most human tumors through loss of p53 function itself, down-regulation of positive regulators (PR) of p53 or up-regulation of negative regulators (NR) of p53, these regulators are accordingly