TLS Online TPP Program

#Question id: 9162


If the direction of Earth's rotation reversed, the most predictable effect would be ________.

#SCPH06 I Botany
  1. an elimination of deserts and increase in tropics
  2. winds blowing from west to east along the equator
  3. a loss of seasonal variation at high latitudes
  4. the elimination of ocean currents
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TLS Online TPP Program

#Question id: 14103

#SCPH05 I Biotechnology

GenBank, the nucleic acid sequence database is maintained by

TLS Online TPP Program

#Question id: 12910

#SCPH01 Biochemistry

Match the following:
A. RNA analysis               i. Sexing or cell mutation sites               a. Expressed Sequence tag
B. Forensic science           ii. mRNA analysis                                     b.  Analysis of DNA from blood
C. Gene discovery              iii. DNA profiling                                       c. Active latent viral infections
D. Single-cell analysis     iv.  RT–PCR                                             d. Sex determination of unborn

TLS Online TPP Program

#Question id: 18694

#SCPH01 Biochemistry

Which of the following is incorrect about multiple structure alignment?

TLS Online TPP Program

#Question id: 13056

#SCPH28 | Zoology

Precision will be reduced, but yield will be increased
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 is true for traditional and real time PCR?

TLS Online TPP Program

#Question id: 7758

#SCPH01 Biochemistry

Chlorophyll is tightly bound in complexes with proteins. During senescence these chlorophyll–protein complexes must be dismantled to allow the apoproteins to be recycled by___