TLS Online TPP Program

#Question id: 8698


Use the figure to answer the following question.

If the figure above is an accurate depiction of relatedness, then which of the following should be an accurate statement?

#SCPH06 I Botany
  1. The entire tree is based on minimum parsimony.
  2. If all species depicted here make up a taxon, this taxon is paraphyletic.
  3. The last common ancestor of species B and C occurred more recently than the last common ancestor of species D and E.
  4. Species A is the direct ancestor of both species B and species C.
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TLS Online TPP Program

#Question id: 4321

#SCPH05 I Biotechnology

A genetic test to detect predisposition to cancer would likely examine the APC gene for involvement in which type(s) of cancer?

TLS Online TPP Program

#Question id: 12934

#I Life Science/ Life Sciences Group – I-V

Reverse transcriptase enzyme is isolated from____

TLS Online TPP Program

#Question id: 19705

#SCPH06 I Botany

Which of the following normally has a slowly depolarizing “prepotential”?

TLS Online TPP Program

#Question id: 10931

#I Life Science/ Life Sciences Group – I-V

A 24-year-old African-American man comes to the emergency room 3 hr after the onset of severe back and chest pain. These problems started while he was skiing. He lives in Los Angeles and had a previous episode of these symptoms 5 years ago while visiting Wyoming. He is in obvious pain. Laboratory studies show the following:

Hemoglobin                                        11 gm/dl

Leukocyte count                                 22,000/μl3

Reticulocyte count                              25%

What is the diagnosis of this patient?

TLS Online TPP Program

#Question id: 365

#SCPH05 I Biotechnology

Water is a polar molecule: the oxygen atom with its unshared electrons carries a partial negative charge (δ−) of ___________, and the hydrogen atoms each carry a partial positive charge (δ+) of __________, where e is the charge of the electron.