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TLS Online TPP Program

#Question id: 8931

A researcher is trying to construct a molecular-based phylogeny of the entire animal kingdom. Assuming that none of the following genes is absolutely conserved, which of the following would be the best choice on which to base the phylogeny?

#SCPH06 I Botany
  1. genes involved in chitin synthesis
  2. collagen genes
  3. beta-catenin genes
  4. genes involved in eye-lens synthesis
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TLS Online TPP Program

#Question id: 944

#SCPH06 I Botany

Because they lack aspartate kinase and aspartate semialdehyde dehydrogenase, ________ cannot synthesize lysine, methionine or threonine.
TLS Online TPP Program

#Question id: 18595

#SCPH28 | Zoology

Which animal reptiles exist in the Permian periods of Paleozoic era?
TLS Online TPP Program

#Question id: 4587

#SCPH28 | Zoology

Which one of the following statements best defines artificial selection?
TLS Online TPP Program

#Question id: 4313

#SCPH05 I Biotechnology

Which of the following statements best describes the characteristics of siRNA?
TLS Online TPP Program

#Question id: 19131

#SCPH01 Biochemistry

How analyte and biological substances interacted in a biosensor?