TLS Online TPP Program

#Question id: 9194


Zoonotic disease

#Unit 9. Diversity of Life Forms
  1. describes sub-organismal pathogens such as viruses, viroids, and prions.
  2. is caused by pathogens that are transferred from other animals to humans by direct contact or by means of a vector.
  3. can only be spread from animals to humans through direct contact.
  4. can only be transferred from animals to humans by means of an intermediate host.
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TLS Online TPP Program

#Question id: 3697

#Unit 3. Fundamental Processes

In the Meselson-Stahl DNA replication experiment, what percent of the DNA was composed of one light strand and one heavy strand after one generation of growth in 14N containing growth media?

TLS Online TPP Program

#Question id: 3698

#Unit 3. Fundamental Processes

In this diagram of the process of DNA replication at a replication fork, the strand labeled B is the:

TLS Online TPP Program

#Question id: 3699

#Unit 3. Fundamental Processes

In this diagram of the process of DNA replication at a replication fork, the black boxes labeled D and E are:

TLS Online TPP Program

#Question id: 3700

#Unit 3. Fundamental Processes

In the Meselson-Stahl DNA replication experiment, if the cells were first grown for many generations in 15N containing media, and then switched to 14N containing media, what percent of the DNA had 1 light strand and 1 heavy strand after 2 generations of growth in 15N growth media?

TLS Online TPP Program

#Question id: 3701

#Unit 3. Fundamental Processes

Frederick Griffith accidentally discovered transformation when attempting to develop a vaccine for pneumonia. He injected mice with samples from S-strain (virulent) and/or R-strain (nonvirulent) pneumococci bacteria (Streptococcus pneumoniae). Which of the following results is NOT consistent with Griffith's experiments?

TLS Online TPP Program

#Question id: 3702

#Unit 3. Fundamental Processes

For the DNA strand 5'-TACGATCATAT-3' the correct complementary DNA strand is: