fter the 8-cell stage, the mammalian embryo develops an outer layer (which becomes the fetal portion of the placenta), and an inner cell mass that generates all the cells of embryo. The cells of the inner cell mass are thus said to be-

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#Question id: 13064

#SCPH01 Biochemistry

Optimisation of a PCR reaction is often a compromise between the competing demands for precision, efficiency and yield. Although the specific effects may vary, generally, increasing the annealing temperature will increase non-specific primer binding and reduce precision. Increasing the length of the elongation phase will reduce the proportion of incomplete newly-synthesised strands and therefore increase yield. In this case, the potential effect on efficiency is unclear. Increasing the elongation phase would increase the reaction time, but the time taken to ramp down to a lower annealing temperature would be reduced.

Which of the following techniques doesn’t involve use of a secondary antibody?

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#Question id: 18720

#SCPH01 Biochemistry

The derivatives of M13 vector are exact counterparts of _________

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#Question id: 5542

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

One stage of cleavage is the morula stage which is:

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#Question id: 6986

#SCPH01 Biochemistry

The use of segments as a developmental strategy in vertebrates is evident in:

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#Question id: 27996

#Research Methodology

Most ex post facto research projects are used for descriptive studies in which the researcher seeks to measure item such as_____

a) Frequency of shopping

b) Preferences of people or similar data

c) manipulate variables

d) any form of manipulation