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#Question id: 1376


Which of the following statements is NOT TRUE about gap junctions?

#Unit 4. Cell Communication and Cell Signaling
  1. Gap junctions have some functionality of permitting cells to adhere to one another.

  2. Gap junctions form channels that are comprised of connexin proteins.

  3. Gap junctions permit the travel of small molecules back and forth between adjacent cells.

  4. Gap junctions prevent molecules and ions from traveling between cells in the extracellular space.

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TLS Online TPP Program

#Question id: 4115

#Unit 3. Fundamental Processes

The possible type of splicing outcome of given gene construct will be

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#Question id: 11894

#General Aptitude

The number between 3000 and 4000 which is exactly divisible by 30, 36 and 80 is

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#Question id: 7241

#Unit 5. Developmental Biology

If planaria are irradiated at a dosage that destroys nearly all neoblasts. Transplanting a single clonogenic neoblast in this planaria results:

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#Question id: 4875

#Unit 8. Inheritance Biology

Early in the development of a plant, a mutation in cpDNA removes a specific BgIII restriction site (B) In this species cpDNA is inherited maternally. Seeds from the plant are grown, and the resulting progeny plants are sampled for cpDNA. The cpDNAs are cut with BgIII, and Southern blots are hybridized with the probe P shown. The autoradiograms show three patterns of hybridization:

Which of the following is correct about plant of seed?

a. plant of seed 1 having only mutated chloroplast

b- Plant of seed 2 having only normal chloroplast

c- Plant of seed 3 having only normal chloroplast

d- Plant of seed 3 having both normal and mutant chloroplast

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#Question id: 12000

#Unit 10. Ecological Principles

The graph below shows  the  growth  rates  of  populations  of  bacteria  that  have  evolved  for  many  generations  at different culture temperatures (25°C, 30°C, and 35°C). Each population grows over only a limited range of temperatures (its thermal niche), which are bounded by its critical thermal limits. Within this range, growth rate increases with temperature up to a maximal value and then declines rapidly with increasing temperature. Growth rates are known to be the major determinant of fitness for these bacteria.

Which of the following is true concerning the thermal dependence of growth rate   between 25°C and 30°C in these populations?