In response to an apoptotic stimulus, initiator caspases a. degrade procaspases. b. cleave a transcription factor...
In response to an apoptotic stimulus, initiator caspases
-
a. degrade procaspases.
b. cleave a transcription factor to active gene expression.
c. degrade executioner caspases.
d. cleave and activate executioner caspases.
Homework Answers
- The right answer is option d - cleave and activate executioner caspases.
- Once activated, the initiator caspases cleave effector caspases. Without the presence of a big pro-domain, effector caspases (caspases-3,6, and 7) do not need an adaptor protein for dimerisation-induced activation.
- Instead, effector caspases spontaneously dimerise.
- Activated effector caspases then cleave a number of protein substrates to initiate the process of apoptosis.
Add Answer to:
In response to an apoptotic stimulus, initiator caspases
a.
degrade procaspases.
b.
cleave a transcription factor...
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9. Analyze the diagram below of a nuclear response for gene expression: Which of the following...
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Which of the following is this cell using to control all of the
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a. phosphate bonded to a transcription factor
b. phosphorylation cascade with multiple steps
c. specific hormone that initiates a response
d. transcription housed outside of the nucleus
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35. To determine whether transcription of a certain gene varies in response to an environmental stimulus, the best option is to: A. Isolate DNA from the organism in the presence and absence of the stimulus and amplify it by PCR B. Perform a Southern blot on DNA isolated in the presence and absence of the C. Perform transposon mutagenesis D. Fuse the promoter of the gene to a reporter construct and check reporter activity in E. Compare the gene sequences...
9. Analyze the diagram below of a nuclear response for gene
expression:
Which of the following is this cell using to control all of the
other events to regulate gene expression?
a. phosphate bonded to a transcription factor
b. phosphorylation cascade with multiple steps
c. specific hormone that initiates a response
d. transcription housed outside of the nucleus
10. Below is a model of a signal transduction pathway that results
in the transcribing of mRNA:
Referencing the model, what...
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