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TLS Online TPP Program

#Question id: 10554

Transpiration is an important means of dissipating the heat input from sunlight, Heat dissipates because the water molecules that escape into the atmosphere

#I Life Science/ Life Sciences Group – I-V
  1. have higher-than-average energy, which breaks the bonds holding them in the liquid
  2. have lower-than-average energy , which breaks the bonds holding them in the liquid
  3. have higher-than-average energy , which donot breaks the bond holding them in the liquid
  4. have higher-than-lower energy , which donot breaks the bond
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TLS Online TPP Program

#Question id: 14747

#SCPH05 I Biotechnology

Mechanism of separation of contaminants present in air by fibrous media are. 
TLS Online TPP Program

#Question id: 1295

#SCPH28 | Zoology

What signal is released by endothelial cells to recruit circulating leukocytes?
TLS Online TPP Program

#Question id: 3529

#SCPH28 | Zoology

Mendel crossed tall and round seeded pea plants with dwarf and wrinkle seeded pea. The F1 plants were all tall and round seed. What is the probability of tall plant with wrinkle seed in F2 generation?
TLS Online TPP Program

#Question id: 16128

#SCPH06 I Botany

You are studying regulation of the yeast enzyme glutamine synthetase (GS), which is encoded by the GLN1 gene. You have isolated two mutants, designated gln2– and gln3–, that give decreased GS activity. Mating of either gln2– or gln3– haploids to wild type produces heterozygous diploids that show normal amounts of GS expression. When you cross either a gln2– or gln3– haploid to a gln1– strain the resulting diploids show normal expression of GS. 
Next, you decide to evaluate the promoter for the GLN1 gene. To do this you first fuse the promoter region to the LacZ coding sequence and then place this hybrid gene on an appropriate yeast plasmid. You find that cells carrying the hybrid gene express activity under the same conditions that GS is expressed in wild type cells, meaning that the promoter region you have selected contains all of the necessary cis-acting sequences for normal regulation. The figure below shows the effect of different 50 bp deletions in the promoter region on the amount of ß-galactosidase activity expressed by the reporter gene. how would you expect a gln2– gln3– double mutant to behave?
TLS Online TPP Program

#Question id: 2962

#SCPH01 Biochemistry

Which of the following experimental observations (some real, some contrived) would not be consistent with our current understanding of cytokinesis?