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TLS Online TPP Program

#Question id: 2673

For a repressible operon to be transcribed, which of the following must be true?

#XL - T Zoology

  1. A corepressor must be present.

  2. RNA polymerase must bind to the promoter, and the repressor must be inactive.

  3. RNA polymerase and the active repressor must be present.

  4. RNA polymerase cannot be present, and the repressor must be inactive.

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TLS Online TPP Program

#Question id: 11477

#XL - T Zoology

How could you genetically modify an animal so that it would distinguish more shades of green?
TLS Online TPP Program

#Question id: 11478

#XL - T Zoology

In a mammalian visual system, visual information is integrated at ________.

 I) the lens

 II) the retina

 III) the optic nerve

 IV) the visual cortex
TLS Online TPP Program

#Question id: 11479

#XL - T Zoology

Tastes and smells are distinct kinds of environmental information where ________.
TLS Online TPP Program

#Question id: 11480

#XL - T Zoology

Most of the chemosensory neurons arising in the nasal cavity have axonal projections that terminate in the ________.
TLS Online TPP Program

#Question id: 11481

#XL - T Zoology

Which of the following sensory receptors is correctly paired with its category?
TLS Online TPP Program

#Question id: 11482

#XL - T Zoology

The umami receptor in the sense of taste detects ________.