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Which of the following is true of TATA boxes?
I. they are found within the core sequence of a gene regulatory sequence
II. they are found downstream of the gene being transcribed
III. they represent an area of DNA more easily opened than other areas
-
I and III only
-
II and III only
-
I, II, and III
-
I and II only
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Solved in 3 steps with 1 images
- Mutations in the promoter region of the β-globin gene indicate that some areas are more sensitive than others. When mutations occur in consensus sequences (modular elements such as GC box, CAAT box, TATA box), transcription usually A. increases b. stays about the same c. decreasesa. The reading frame DNA sequence is: b. The mRNA sequence is: c. The polypeptide sequence is: A disease in frogs which causes their tongue to fall out of their mouths is killing the frog population in LA County. You obtain a dead frog and isolate its gene Xf. When you sequence this mutated gene, you find that the last ‘G’ at the end of the first line of this sequence has been deleted (i.e. the G at position 86). In order to determine how this mutation changes the resulting polypeptide, write the mutated polypeptide sequence in the space below. What kind of mutation was produced? The mutated polypeptide sequence is What kind of mutation was produced?Which of the following types of transposable elements rely onan RNA intermediate for transposition?a. Insertion elementsb. Simple transposonsc. Retrotransposonsd. All of the above
- What is the guide RNA for? It is an RNA sequence that binds to a DNA 5'-NGG sequence where N can be any nucleotide (A, T, C, or G). It is the RNA code upon which the DNA to be inserted is built It connects the DNA sequence to the Cas9 protein It binds to the target DNA sequence, defining where Cas9 should cut the DNA It is inserted into the target DNA sequence, causing the desired gene editWhich of the following is characteristic of genes and gene regulation in both bacteria and eukaryotes? (a) promoters (b) non-coding DNA within coding sequences (c) enhancers (d) operons (e) DNA located in a nucleusThe promoter and terminator regions of genes are important in: a. coding for amino acids b. gene regulation c. structural support for the gene d. intron removal e. anticodon recognition
- Which of the following statements best describes the promoter of a protein-coding gene? A. The promoter is a protein that recruits RNA polymerase. B. The promoter is part of the RNA molecule itself. C. The promoter is a site found on RNA polymerase. D. The promoter contains the AUG start codon. E. The promoter is a nontranscribed region of a gene.If a researcher wanted to utilize CRISPR/Cas9 to target a gene of interest in their experimental system (i.e. Drosophila) which of the following would they customize for this purpose Group of answer choices Guiding region of sgRNA None of the above, CRISPR can only function in bacterial cells Cas9 enzyme Scaffold region of sgRNAWhich feature of promoters can be found in both prokaryotes and eukaryotes? a. GC box b. TATA box c. octamer box d. -10 and -35 sequences
- A person’s 5’ capping machinery has failed, but the PolyA tail machinery is still working. Pretending that they actually survive this issue, which of the following is a possible consequence? The person acquires many somatic mutations. The person has higher than normal levels of mRNA in the nucleus. The person has dTTP bases in the mRNA instead of UTP. The person develops a fever and body aches. If not higher than normal levels of mRNA in the nucleus, would it be fever and body aches due to the immune system being launched because mRNA cannot recognize self?Which of the following best represents the central dogma of geneexpression?a. During transcription, DNA codes for polypeptides.b. During transcription, DNA codes for mRNA, which codes forpolypeptides during translation.c. During translation, DNA codes for mRNA, which codes forpolypeptides during transcription.d. none of the abovewhich is the following is not a step in the process of de novo gene birth? o translated peptides provide some benefit to the orhganism, leading to selection for increased expression. o the open reading frame picks up sequences that enable recognition of its transcribed mRNA by the ribosome. o an open reading frame is created through mutations. o the gene copy number changes as a result of gene duplication to make paralogs.