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TLS Online TPP Program

#Question id: 9150

For mountain ranges that are subjected to prevailing winds, why is the climate drier on the leeward (downwind) side?

#SCPH28 | Zoology
  1. Deserts create dry conditions on the leeward side of mountain ranges.

  2. The sun illuminates the leeward side of mountain ranges at a more direct angle, converting to heat energy, which evaporates most of the water present.

  3. Pushed by the prevailing winds on the windward side, air is forced to rise, cool, condense, and drop its precipitation, leaving drier air to descend the leeward side.

  4. Air masses pushed by the prevailing winds are stopped by mountain ranges and the moisture is used up in the stagnant air masses on the leeward side.

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#Question id: 5691

#SCPH06 I Botany

Which of the following most accurately explains the cause for the abnormal numbers of chromosomes during human reproduction that can result in Down syndrome, Turner’s syndrome, or Klinefelter’s syndrome?
TLS Online TPP Program

#Question id: 410

#SCPH28 | Zoology

For the reaction A -> B, the Keq' is 10^4.  If a reaction mixture originally contains 1 mmol of A and no B, which one of the following must be true?
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#Question id: 3015

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

All the bacterial cells that result from the replication of a single original bacterial organism are said to be a
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#Question id: 17918

#SCPH01 Biochemistry

Match the items in Group 1 with an appropriate description in Group 2

Group 1                                                   Group 2
P. PSI-BLAST                                   1. Protein sequence database
Q. CLUSTALW                                  2. Profiles
R. SWISS-PROT                              3. Needleman-wunsh algorithm
S. Global alignment                         4. Multiple sequence alignment
TLS Online TPP Program

#Question id: 15183

#SCPH06 I Botany

When in a gel more Joule heat is produced than can be dissipated, the temperature in the middle of the gel is higher than at the lateral edges. This causes higher mobility of the ions in the center, resulting in an uneven distribution of the zones. The zones bend up at the two lateral sides, causing