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TLS Online TPP Program

#Question id: 2618

The three genes (lacZ, lacY, and lacA) are transcribed as a single mRNA from the promoter, these genes are expressed at high levels only when

#Unit 2. Cellular Organization

  1. Lactose is available

  2. Glucose, the preferred energy source is available

  3. Three regulatory proteins are involved.

  4. The Lac repressor is encoded by the lacI gene, which is located near the CAP Site.

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TLS Online TPP Program

#Question id: 5784

#Unit 8. Inheritance Biology

Which of the following genetic diseases results from a mutation that lowers the amount of protein produced?
TLS Online TPP Program

#Question id: 5785

#Unit 8. Inheritance Biology

Which disease is the result of a somatic mutation?
TLS Online TPP Program

#Question id: 5786

#Unit 8. Inheritance Biology

A mutation causing an abnormality in presenilin that disrupts amyloid production or function has been associated with
TLS Online TPP Program

#Question id: 5787

#Unit 8. Inheritance Biology

A spontaneous mutation usually originates as an error in
TLS Online TPP Program

#Question id: 5788

#Unit 8. Inheritance Biology

The ____ gene has one of the highest mutation rates known.
TLS Online TPP Program

#Question id: 5789

#Unit 8. Inheritance Biology

Which of the following defects causes ataxia telangiectasis?