6. Describe and diagram the CRP/CAP site. How are these sites located relative to the promoter? How is the transcription inhibited in operons that require CRP activity?
6. Describe and diagram the CRP/CAP site. How are these sites located relative to the promoter?...
F) The transcription initiation site is located (3 pts) i) within the promoter. ii) on RNA polymerase. iii) at splice sites. iv) in a ribosome. v) all of the above
Describe how to control transcriptional initiation occurs in both PROKARYOTES and EUKARYOTES. Word bank: promoter TATA-Binding Protein (TBP) RNA polymerase + sigma factor enhancer TATA-box gene-specific transcription factors RNA polymerase + GTFs phosphodiester bonds -10 and -35 consensus sequences mediator protein +1 Transcriptional Start Site (TSS) deoxynucleoside triphosphates (dNTPs) template DNA RNA transcript.
hello, two of these circled answers are incorrect.
1 6. The promoter sequences are the positions that: signal the initiation site of a gene (+1) B) bind the transcriptional factor that is associated with RNA polymerase e) attach the correct nucleotide triphosphate to the template DNA strand D) separate the two DNA strands CUA 7. A particular triplet of bases in the coding sequence of DNA is GAT. The anticodon on the tRNA that binds the mRNA codon is A...
The following is a diagram of the LCT (lactase gene) gene
regulation system in humans. When the LCT gene is transcriptionally
active, the cell produces the enzyme lactase, which is
needed to digest the lactose in many dairy products. Based on what
you know about enhancers and promoters from your reading, predict
how the following scenarios might influence LCT gene expression and
thus lactase production in cells:
The enhancer sequence is inverted, but remains intact so that
Oct1 still binds...
(10) 6. Describe how a reflectron time-of-flight mass analyzer works. Make a diagram in your description. Make sure to label each component in your diagram.
What control elements regulate expression of the mPGES-1 gene? The promoter of a gene includes the DNA immediately upstream of the transcription start site, but expression of the gene can also be affected by control elements. These can be thousands of base pairs upstream of the promoter, grouped in an enhancer. Because the distance and spacing of these control elements make them difficult to identify, scientists begin by deleting sections of DNA that contain possible control elements and measuring the...
Help with 1-6 please??
after the due date and time Describe what Meselson and Stahl would have observed after 3 rounds of replication IF DNA replication was dispersive. (1 point) All the DNA would have a heavy density. All of the DNA would have a density that falls between between intermediate and light density of the DNA would have a light density and 4 would have an intermediate density. 3/4 of the DNA would have a heavy density and %...
2. A dominant allele H reduces the number of body bristles that Drosophila flies have, giving rise to a “hairless” phenotype. In the homozygous condition, H is lethal. An independently assorting dominant allele S has no effect on bristle number except in the presence of H, in which case a single dose of S suppresses the hairless phenotype, thus restoring the "hairy" phenotype. However, S also is lethal in the homozygous (S/S) condition. What ratio of hairy to hairless flies...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....