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TLS Online TPP Program

#Question id: 4023

Which of the following is a fundamental difference between gene regulation in bacteria compared with eukaryotes?

#Unit 3. Fundamental Processes

  1. In bacteria, but not eukaryotes, there is a specific sequence that specifies where RNA polymerase binds and initiates transcription.

  2. In eukaryotes, but not bacteria, transcription can be influenced by how effectively the DNA sequence of a promoter region interacts with histone octamers.

  3. Transcription regulation is the most widespread form of control of gene expression in bacteria but not in eukaryotes.

  4. Gene regulation is readily reversible in eukaryotes but not bacteria.

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TLS Online TPP Program

#Question id: 5329

#Unit 8. Inheritance Biology

A sex-linked recessive allele c produces a red-green colorblindness in humans. A normal woman whose father was colorblind marries a colorblind man. What are the chances that the second child from this marriage will be a colorblind boy?
TLS Online TPP Program

#Question id: 24624

#Unit 2. Cellular Organization

Phenomenon of gene redundancy are frequently found in the genome of
TLS Online TPP Program

#Question id: 4298

#Unit 3. Fundamental Processes

Insulin and other growth factors stimulate a pathway involving a protein kinase mTOR, which in its turn augments protein synthesis. mTOR essentially modifies protein(s) which in their unmodified form act as inhibitors of protein synthesis. The following protein is NOT possible candidate:
TLS Online TPP Program

#Question id: 32248

#Unit 2. Cellular Organization

The basis for different binding affinity between the KDEL receptor and the KDEL sequence in the ER & golgi is due to:
a. the lower pH in the Golgi 
b. the higher pH in the Golgi 
c. the lower pH in the ER
d. the higher pH in the ER
TLS Online TPP Program

#Question id: 29031

#Unit 11. Evolution and Behavior

A certain species shows where they live is not actively  defended, and a completely homogenous habitat where resources are distributed throughout that showing____