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TLS Online TPP Program

#Question id: 6957

The effect of grafting an extra piece of notochord into a dorsal position adjacent to pre-somitic mesoderm is

#SCPH01 Biochemistry
  1. the pre-somitic mesoderm will degenerate
  2. somites will form but fail to differentiate
  3. signals from the notochord will convert presumptive dermomyotome into sclerotome
  4. the somite will be converted almost entirely to muscle-forming cells
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TLS Online TPP Program

#Question id: 1393

#SCPH28 | Zoology

In research on aging (both cellular aging and organismal aging), it has been found that aged cells do not progress through the cell cycle as they had previously. Which of the following, if found in cells or organisms as they age, would provide evidence that this is related to cell signalling?
TLS Online TPP Program

#Question id: 19689

#SCPH01 Biochemistry

Which of the following statements are true about the PR interval?
a. It includes the P wave and the PR segment
b. The beginning of electrical excitation of the atria and the beginning of excitation of the ventricles.
c. Conduction time through the AV node.
d. P wave + PR segment + QRS Complex
TLS Online TPP Program

#Question id: 6950

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

In mammalian development, the embryo will form from which population of cells?
TLS Online TPP Program

#Question id: 27751

#Research Methodology

In the methods section of the report, the researcher needs to:
TLS Online TPP Program

#Question id: 17921

#SCPH01 Biochemistry

Which of the following scoring matrices is one of the best to score an alignment of highly conserved protein sequences?