A mutation in a steroid hormone receptor that renders it completely inactive will have which of the following effects?
Right answer is A.
Explanation:
The steroid hormone receptor becomes inactive in nature. That's why whether steroid is present or absent. It can not activaye steroid hormone receptor. That's why there is not found signalling response in the cell. Hence there is not found expression of genes of the nucleus. Hence steroid hormone do not shows its response in the cell.
A mutation in a steroid hormone receptor that renders it completely inactive will have which of...
Question 11 (1 point)
Which of the following options most closely resembles the
typical pathway of a molecule like testosterone?
Question 11 options:
Binds to steroid hormone receptor-> receptor
is activated -> many kinases are activated -> complex signal
cascade-> cellular response
Enters cell -> binds to peptide hormone
receptor -> receptor enters nucleus -> change in
transcription
Enters cell -> binds to steroid hormone
receptor -> receptor enters nucleus -> change in
transcription
Binds to peptide hormone receptor ->...
In female mice, both the glucocorticoid (cortisol) receptor and the estrogen receptor are expressed in liver cells (hepatocytes). The control element to which the glucocorticoid receptor binds is a short-strip of DNA that can accommodate the binding of the glucocorticoid receptor dimer. This control element is called a glucocorticoid response element (GRE). It is located1000 bp downstream from the poly-A site for the PEPCK gene. When this gene is activated by cortisol, it helps the hepatocyte to release glucose into...
1. trans-acting factors are able to regulate target genes from any chromosome, whereas cis-acting elements can only regulate genes located in the same chromosome. a. True only in operons. In Eukaryotic systems, trans-acting factors only regulate genes in the same chromosome. b. True only in Eukaryotes. Prokaryotes don’t have cis-acting elements. c. True for any organism. d. False. The statement is erroneous 2. Unlike activators, repressors never affect chromatin structure. Repressors inhibit transcription only by binding to the binding sites...
The lac operon contains a DNA sequence known as the lac promoter (P or P+ for wild type; P– for mutant (RNA polymerase does not bind)) that serves as the RNA polymerase binding site. The lac operon also contains a DNA sequence known as the Lac operator (O or O+ for wild type; O– or Oc for mutant (lac repressor cannot bind)) which is the binding site for lac repressor. The lac repressor, a protein, is encoded by the lac...
O binding to estrogen and preventing it from binding to its receptor and exerung 7. Which of the following is NOT true regarding the differences between gene transcription in eukaryotes and prokaryotes? O Most eukaryotes use multiple transcription factors rather than single transcription factors O Most eukaryotes have regulatory sites that are close to their promoters. 0 Prokaryotic transcription factors usually interact directly with RNA polymerase while eukaryotic transcription factors do not. O Most prokaryotes transcribe multiple genes under the...
Question 1 Match the term with the best definition or description; most topics relate to the regulation of gene expression. General type of protein which will increase transcription rates when it attaches to a site A. Factor connected to a particular gene - B. Co-repressor C. Enhancer D. Promoter E. Structural F. Intron G. Activator H. Operator I. Basal transcription J. Glucocorticoid receptor K. Sigma factor L. Mediator M. Inducer N. TATA box O. Repressor The rates of mRNA produced...
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transcription? How could the presence of a hormone in the blood have an effect on this structure? 6 points 3. What is an enhancer region and why is it important in the regulation of eukaryotic Contents Cancer Genes that cause cancer are called oncogenes. d. promoter genes. a. operator genes. b. pseudogenes.c 2A mutation in which of the following genes would be LEAST likely lead to a cancer? a. growth hormone gene b. growth hormone receptor gene c....
Question 7 2 pts Which of these genes would not likely be regulated by the bacterial SOS response?! Translesion DNA polymerase Cell division promoter Holliday junction branch migration enzyme Nucleotide excision repair enzyme Question 8 2 pts Which of these mutations is likely to have the greatest impact on the amino acid composition of the resulting protein? Silent Synonymous Frameshift Missense Question 9 2 pts What would be the result of perfect and continuous suppression of the lac operon in...
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ted esch 4 Home 100 Rescue Check Answer Napoli et al. (1990) produced genetically-modified petunias by inserting numerous copies of the petunia CHS individual genomes CHS codes for a key enzyme in the synthesis of anthocyanin a pigment that produces light purple petals in wild type petunias. The investigators hypothesized that additional copies of CHS would increase expression of the yani producing a phenotype of dark purple petals. Unexpectedly, 42% of modified plants yielded petals that were white...
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