TLS Online TPP Program

#Question id: 2491


The force for axoneme bending is derived from the:

#Unit 2. Cellular Organization
  1. sliding movement of central pair microtubules.

  2. contraction of central pair microtubules.

  3. sliding movement of outer doublet microtubules.

  4. contraction of outer doublet microtubules.

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TLS Online TPP Program

#Question id: 4591

#Unit 11. Evolution and Behavior

Which of the following factors could cause a surge in population size?

TLS Online TPP Program

#Question id: 11288

#Unit 10. Ecological Principles

Below is a table showing the number of species and actual food web links observed in three different ecosystems. By calculating connectance as a measure of relative complexity of food webs, which of the following ecosystem are more complex? 


TLS Online TPP Program

#Question id: 3368

#Unit 11. Evolution and Behavior

The origin of a new plant species by hybridization, coupled with accidents during nuclear division, is an example of

TLS Online TPP Program

#Question id: 10251

#Unit 6. System Physiology – Plant

Initial phase of glycolysis, substrates from different sources are channeled into triose phosphate. For each molecule of sucrose that is metabolized, four molecules of triose phosphate are formed. This process how much requires ATP input?

TLS Online TPP Program

#Question id: 15835

#Unit 8. Inheritance Biology

You are interested in a new type of autosomal dominant mutation that gives purple eyes in Drosophila. You have a true-breeding purple-eyed line carrying a mutation that you call pr-1. You have isolated a second purple-eyed mutation that you call pr-2, which you have established in a true-breeding line that also carries a recessive marker st, which gives stubby legs. You cross a fly from the pr-1 line to a fly from the st, pr-2 line producing F1 females which you then cross to males from a true breeding st line (normal eyes). From this cross, 1000 progeny flies can be categorized into four different phenotypic classes:
                       
What is the distance between pr-1 and pr-2 in cM?