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TLS Online TPP Program

#Question id: 11122

Phylogenetic hypotheses (such as those represented by phylogenetic trees) are strongest when

#Unit 9. Diversity of Life Forms
  1. they are based on amino acid sequences from homologous proteins, as long as the genes that code for such proteins contain no introns.
  2. each clade is defined by a single derived character.
  3. they are supported by more than one kind of evidence, such as when fossil evidence corroborates molecular evidence.
  4. they are accepted by the foremost authorities in the field, especially if they have won Nobel Prizes.
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TLS Online TPP Program

#Question id: 24465

#Unit 3. Fundamental Processes

Which of the following is incorrectly matched  
TLS Online TPP Program

#Question id: 3541

#Unit 8. Inheritance Biology

Blue follower is dominant over white flower and long pollen is dominant over short pollen. A plant with Blue flower and short pollen was cross with white flower and long pollen. All F1 offspring display blue flower and long pollen. What is the percent of F2 progeny showing blue flower and long pollen?
TLS Online TPP Program

#Question id: 13077

#Unit 13. Methods in Biology

The DNA probes for RFLP may NOT be obtained from
TLS Online TPP Program

#Question id: 13021

#Unit 10. Ecological Principles

Which marine zone would have the lowest rates of primary productivity (photosynthesis)? 
TLS Online TPP Program

#Question id: 4421

#Unit 3. Fundamental Processes

In addition to histone acetylase complexes, multiprotein chromatin-remodeling complexes are required for activation at many promoters. The first of these complexes characterized was the yeast SWI/SNF chromatin-remodeling complex. One of the SWI/SNF subunits has homology to