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TLS Online TPP Program

#Question id: 914

Lipoprotein lipase acts in:

#I Life Science/ Life Sciences Group – I-V

  1. hydrolysis of triacylglycerols of plasma lipoproteins to supply fatty acids to various tissues.

  2. intestinal uptake of dietary fat.

  3. intracellular lipid breakdown of lipoproteins.

  4. lipoprotein breakdown to supply needed amino acids.

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TLS Online TPP Program

#Question id: 16139

#SCPH01 Biochemistry

 Many mouse genes are “tissue-specific,” that is, they are present throughout the body but are expressed in only one of the animal’s many tissue types. (Other mouse genes are expressed throughout the body, or in multiple tissues.) Geneticists can study the regulation of a mouse gene by fusing the gene’s promoter region to the LacZ coding sequence and injecting the construct to create a transgenic mouse. Fusion of the mouse amylase promoter to LacZ yielded a Pamylase-LacZ construct.              
Mice heterozygous for the resulting Pamylase-LacZ  transgene displayed the LacZ expression exclusively in the pancreas. Would you expect homozygotes for the transgene to also display LacZ expression in the pancreas?.
TLS Online TPP Program

#Question id: 682

#SCPH28 | Zoology

The principle forces holding subunits of an oligomeric protein to each other are ________.
TLS Online TPP Program

#Question id: 5083

#SCPH01 Biochemistry

Which of the following correctly displays the sequence of developmental milestones?
TLS Online TPP Program

#Question id: 10906

#SCPH05 I Biotechnology

The pressure-flow model explains phloem translocation as a flow of solution (bulk flow) driven by an osmotically generated pressure gradient between source and sink.

a) Phloem translocation, both active and passive mechanisms were considered. All theories, both active and passive, assume an energy requirement in both sources and sinks.

b) In sources, energy is necessary to move photosynthate from producing cells into the sieve elements. This movement of photosynthate is called phloem loading.

c) In sinks, energy is essential for some aspects of movement from sieve elements to sink cells, which store or metabolize the sugar. This movement of photosynthate from sieve elements to sink cells is called phloem unloading.

d) The Active mechanisms of phloem transport further assume that energy is required in the sieve elements of the path between sources and sinks simply to maintain structures.

From the given statements find out the correct for pressure-flow model.
TLS Online TPP Program

#Question id: 1682

#SCPH01 Biochemistry

Extensive allelic polymorphism is found in MHC: