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TLS Online TPP Program

#Question id: 13018

Generalized global air circulation and precipitation patterns are caused by

#Unit 10. Ecological Principles
  1. Rising, warm, moist air masses cool and release precipitation as they rise and then at high altitude, cool and sink back to the surface as dry air masses after moving north or south of the tropics.
  2. Air masses that are dried and heated over continental areas that rise, cool aloft, and descend over oceanic areas followed by a return flow of moist air from ocean to land delivering high amounts of precipitation to coastal areas.
  3. Polar, cool, moist high pressure air masses from the poles that move along the surface, releasing precipitation along the way to the equator where they are heated and dried.
  4. The revolution of the Earth around the sun.
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TLS Online TPP Program

#Question id: 1789

#Unit 4. Cell Communication and Cell Signaling

What is negative feedback on adaptive B-cell responses mediated by
TLS Online TPP Program

#Question id: 22953

#Unit 5. Developmental Biology

The MADS box gene form tetramers that bind to 
TLS Online TPP Program

#Question id: 23709

#Unit 13. Methods in Biology

Which of the following modifications is least likely to alter the rate at which a DNA fragment moves through a gel during electrophoresis?
TLS Online TPP Program

#Question id: 10410

#Unit 6. System Physiology – Plant

phytochrome red and far-red light. Given below experiment of lettuce seed, which of the following option will be incorrect?
TLS Online TPP Program

#Question id: 19026

#Unit 8. Inheritance Biology

Consider the ABO “blood type” gene. This single gene has three alleles called A, B, and O. There are four resultant “blood types” (phenotypic classes), as follows:
                             
Assume Hardy-Weinberg equilibrium, the frequencies of the A and B alleles are 0.26 and 0.07, respectively. You now examine the ABO blood types in yet another population. You observe that the AB blood type has a frequency of 0.50 in this population. What are the frequencies of the A and O alleles in this population?