Different codons that specify the same amino acid are called __ codons.

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#Question id: 2087

#SCPH01 Biochemistry

Phospholipids with short or unsaturated fatty acyl chains

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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: 4945

#SCPH28 | Zoology

Which is a defining characteristic that all protobionts had in common?

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#Question id: 1758

#SCPH01 Biochemistry

The specificity of antibody secreted by a B-cell may not be the same as that of the surface Ig of the clonal parent because of:

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#Question id: 12933

#SCPH05 I Biotechnology

Choose the correct order for the cloning process.

1. The production of cDNA is carried out using an enzyme termed Reverse transcriptase.

2. mRNA cannot be used directly in cloning.

3. It is possible to synthesis complementary DNA molecule to all the mRNA from the selected tissue.

4. The cDNA may be inserted into vectors and then cloned.