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TLS Online TPP Program

#Question id: 8692

Which of the following statements is accurate with regard to a phylogeny, as represented by a phylogenetic tree?

#Unit 9. Diversity of Life Forms
  1. Descendant groups (branches) from the same node likely share many derived characters.
  2. A monophyletic group can be properly based on convergent features.
  3. The ancestral group often has all the derived characters of the descendant species.
  4. Shared ancestral characters are excellent traits to use in developing a phylogeny.
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TLS Online TPP Program

#Question id: 114

#Unit 1. Molecules and their Interaction Relevant to Biology

Sphingosine is not a component of
TLS Online TPP Program

#Question id: 2966

#Unit 2. Cellular Organization

Scientists isolate cells in various phases of the cell cycle. They isolate a group of cells that have 1 1/2 times more DNA than G1 phase cells. What is the most likely part of the cell cycle from which these cells were isolated?
TLS Online TPP Program

#Question id: 32222

#Unit 2. Cellular Organization

Mutations in any of a dozen different peroxins, the most common being Pex1, cause an impairment in peroxisomal protein import, leads to:
TLS Online TPP Program

#Question id: 2690

#Unit 2. Cellular Organization

What do you think is the requirement of Intergenic DNA in higher organisms?
TLS Online TPP Program

#Question id: 456

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following function is done by compartmentation of enzymes?

A) helps loss by diffusion.

B) keeps separate pools of metabolites in cells.

C) can help control metabolic pathways.