Practice Questions

TLS Online TPP Program

#Question id: 3032

Which of these statements about prokaryotes is correct?

#Section 2: General Biology

Bacterial cells conjugate to mutually exchange genetic material.
Their genetic material is confined within a nuclear envelope.
They divide by binary fission, without mitosis or meiosis.
Genetic variation in bacteria is not known to occur, nor should it occur, because of their asexual mode of reproduction.

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TLS Online TPP Program

#Question id: 14565

#Section 2: General Biology

The Gram stain and the endospore stain both use

TLS Online TPP Program

#Question id: 14566

#Section 2: General Biology

A pure culture in exponential growth phase has a bacterial concentration of 6.4 x 10⁸ cells/ml. If the bacterium has a generation time of 1 h, how long ago was the cell

concentration 8.0 x 10⁷ cells/ml?

TLS Online TPP Program

#Question id: 14567

#Section 2: General Biology

In a rapidly multiplying bacterial population, cell numbers increase

TLS Online TPP Program

#Question id: 14568

#Section 2: General Biology

Generally the proteins of thermophiles

TLS Online TPP Program

#Question id: 14569

#Section 2: General Biology

A hot tub (approx. 104°F or 40°C) would most likely contain

TLS Online TPP Program

#Question id: 14570

#Section 2: General Biology

MacConkey agar is