Certain steroid hormone receptor proteins can act as transcriptional activator p
ID: 164827 • Letter: C
Question
Certain steroid hormone receptor proteins can act as transcriptional activator proteins when the steroid hormone is present. If estrogen (a steroid hormone with a receptor that was just but do not change in liver, brain, or muscle tissues. Given what we have studied about combinatorial gene regulation in Eukaryotes, which of the following is NOT a possible explanation of this phenomenon?described) levels rise in a human, the transcription levels of ovalbumin genes go up in ovules.
a) Only ovules have enhancer sequences for estrogen receptors.
b) Estrogen receptors are found only in ovules.
c) Estrogen receptors are found in all tissues, but liver, brain, and muscle tissues have repressor proteins that counteract the estrogen receptor.
d) Only ovules have the appropriate HSP90 protein to keep the estrogen receptor appropriate folded so that it can function.
e) All of the above are plausible explanations of the observations given.
Explanation / Answer
Given what we have studied about combinatorial gene regulation in Eukaryotes, which of the following is NOT a possible explanation of this phenomenon? described) levels rise in a human, the transcription levels of ovalbumin genes go up in ovules.
a) Only ovules have enhancer sequences for estrogen receptors.
b) Estrogen receptors are found only in ovules--------------answer
c) Estrogen receptors are found in all tissues, but liver, brain, and muscle tissues have repressor proteins that counteract the estrogen receptor.
d) Only ovules have the appropriate HSP90 protein to keep the estrogen receptor appropriate folded so that it can function.
e) All of the above are plausible explanations of the observations given.
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Estrogen receptors (ERs)