Practice Questions

TLS Online TPP Program

#Question id: 8687

Your professor wants you to construct a phylogenetic tree of orchids. She gives you tissue from seven orchid species and one lily. What is the most likely reason she gave you the lily?

#XL - T Zoology

to serve as an outgroup
to see if the lily is a cryptic orchid species
to see if the lily and the orchids show all the same shared derived characters
to demonstrate likely homoplasies

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TLS Online TPP Program

#Question id: 1751

#XL - Q Biochemistry

Which of the following is characteristically produced by the Th2 CD4 cells which provide help for antibody production, but not by Th1 cells?

TLS Online TPP Program

#Question id: 20125

#XL - P Chemistry

Which of the following does not exhibit zero entropy at absolute zero

TLS Online TPP Program

#Question id: 15249

#XL - S Microbiology

Halophiles have adapted so completely to ____________ conditions that they require high levels of ___________ to grow.

TLS Online TPP Program

#Question id: 5240

#XL - S Microbiology

If bacteria grow in the presence of a large amount of DNase, which of the following recombination process completely inhibited?

TLS Online TPP Program

#Question id: 9607

#XL - S Microbiology

The common housefly belongs to all of the following taxa. Assuming you had access to textbooks or other scientific literature, knowing which of the following should provide you with the most specific information about the common housefly?