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TLS Online TPP Program

#Question id: 15895

Secondary metabolites are___

#Unit 12. Applied Biology
  1. Essential to microbe function
  2. By-product of metabolism that is not important to microbe function
  3. Product that require additional processing before they can be packaged
  4. Harvested during the exponential phase of growth
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TLS Online TPP Program

#Question id: 12116

#Unit 10. Ecological Principles

Which of the following is not required for a behavioural trait to evolve by natural selection? 
TLS Online TPP Program

#Question id: 13108

#Unit 13. Methods in Biology

With the help of DNA fingerprinting which can be used to determine paternity. There are three babies (Baby A, Baby B and Baby C) in a maternity ward, and three sets of confused and worried parents. (Father and Mother #1 are a couple, as are Father and Mother #2, and Father and Mother #3.) 
You do each PCR reaction on chromosome 15 and load each one into a separate well of an agarose gel, and then run the gel.

 
 Why is it that some people show three bands?
TLS Online TPP Program

#Question id: 26412

#Unit 3. Fundamental Processes

Which of the following is incorrectly matched with their function in E.coli and eukaryotes
TLS Online TPP Program

#Question id: 15815

#Unit 8. Inheritance Biology

You and your lab partner have isolated 20 new mutant yeast strains that are defective in synthesis of threonine, an amino acid. These Thr- mutants do not grow on minimal medium, but they do grow on minimal medium supplemented with threonine. Ten of your Thr- mutants (numbered 1 through 10) were isolated in a strain of mating type a (MAT a). The other 10 Thrmutants (numbered 11 through 20) were isolated in a strain of mating type α (MAT α). You and your lab partner cross each of the MAT a strains to each of the MAT α strains, and you include crosses to the appropriate wild-type strains. Your experimental observations are shown in the table below, where (-) indicates diploids that did not grow on minimal medium and (+) indicates diploids that did grow on minimal medium.

Which mutations are dominant?
TLS Online TPP Program

#Question id: 28161

#Unit 1. Molecules and their Interaction Relevant to Biology

In Parkinson disease, the misfolded form of the protein Alpha-synuclein aggregates into spherical filamentous masses called