Which of the following about the splicing in posttranscriptional processing is NOT true? O a. O b. O C. In bacterial, the genes coding for polypeptides are interrupted by non-coding regions. Introns in eukaryotic hnRNA must be cut out before mature mRNA can be used for protein synthesis. Alternate splicing can lead to tissue-specific proteins.
Q: ½ O₂ + 2H+ +2 e → H₂O FAD + 2H+ + 2e → FADH₂ E'º = 0.816V E'º = -0.219V Calculate the AG" of the…
A: Biological oxidation-reduction reactions involve the transfer of electrons from one biomolecule,…
Q: Next exam will be on carbohydrates, protein equencing and enzymes iochemistry roblem Assignment…
A: Emil Fischer invented the Fischer projection, a method of representing the three-dimensional…
Q: What are the Essential and Non-Essential Amino Acids? Describe each.
A: An amino acid is an organic compound that contains both an amino (-NH2) and carboxylic acid (-COOH)…
Q: Pyrosequencing uses what reactants?
A: INTRODUCTION : Pyrosequencing : It is a process/technique of DNA sequencing ( which itself is the…
Q: The inhibition of PFK-1 by ATP diminishes when the ADP concentration is high, as shown in the graph…
A: PFk-1 is an enzyme involved in glycolysis. It catalyzes the conversion of fructise-6-phoaphate to…
Q: Why is RNA splicing important to cellular processes and protein synthesis?
A: As per the central dogma of molecular biology, DNA contains the information needed to synthesize…
Q: The citric acid cycle is shown. The methyl carbon in acetyl CoA is labeled with C14C14 (shown in…
A: Citric acid cycle - it is also called as Krebs cycle or the TCA cycle (tricarboxylic acid cycle)…
Q: To which part of DNA do the eukaryotic transcription factors bind? O a. promoter regions O b.…
A: Transcription is the synthesis of RNA from DNA that is the process of copying the information of a…
Q: Make a Concept Map about the Amino Acids. Separate them base on Essential, Non-Essential, and…
A: Amino acids are biomolecules that have an amino group and a carboxyl group linked to the same carbon…
Q: 3. After the competition, the athlete's lactic acid content is 4 mmol/l. Can this be considered a…
A: Lactate is created more quickly and cannot be removed, it builds up in muscle fibers. Lactate is a…
Q: A gene for albumin has 5 exons. When the DNA from this gene is allowed to hybridize with nuclear…
A: Introduction DNA is a self replicating molecule. mRNA is formed from DNA by a process called…
Q: In TCA cycle, FADH2 is formed in reaction(s) catalyzed by a. Succinyl-CoA synthetase b. Succinate…
A: In aerobic condition, pyruvate in the presence of pyruvate dehydrogenase complex produces Acetyl…
Q: In active muscle cells, the pO2 is about 10 torr at the cell surface and 1 torr at the mitochondria…
A: Fractional saturation (Y) is the fraction of protein that is ligand bound. Y= moles of…
Q: Convert 475 cal to joules
A: Calories, joules are used to determine the amount of energy present in the food . The energy given…
Q: 2. Draw the structure of the fatty acid, 16:247,10, as it occurs at pH 7. Make sure double bonds…
A: Fatty acids can be named and numbered in 2 ways. Fatty acids have a carboxylate end (COO- ) and a…
Q: Compare and contrast glycerophospholipids and triacylglycerols(functions, structure), including…
A: Lipids are a chemically diverse group of biomolecules that have two things in common: low…
Q: Why was it necessary to use phosphoaminophosphohlc (ANP) in the ATP synthase enzyme active site…
A: ATP (Adenosine triphosphate) is energy molecule which is pretty stable in aqueous solutions at pH…
Q: What is the molecular basis for the difference in the electrophorentic pattern between normal…
A: Hemoglobin is a globular protein, ie it is roughly spherical. It is a tetramer of two types of…
Q: Which of the following statements is true about the well-fed state? O a. Liver glycogen is…
A: The well-fed state is the absorptive state that begins immediately after meal consumption. It is…
Q: Why is the name the "citrate cycle" a more accurate name for the metabolic pathway discovered by…
A: Critic acid cycle also called as tricarboxylic acid cycle is the second stage in aerobic cellular…
Q: 4. Why does DNA use Thymine instead of Uracil?
A: DNA is the type of nucleic acid, double stranded poly-nucleotide chain which work as the genetic…
Q: A mixture of lipids containing phosphatidic acid, cholesterol, testosterone, phosphatidylserine, and…
A: Non-polar molecules do not form a hydrogen bond with water can are thus considered hydrophobic.…
Q: When muscle is at rest, creatine phosphate is produced from ATP in order to store energy. What is…
A: Most of the time, certain cellular reactions are highly endergonic reaction, that is they are…
Q: What structural and functional advantages do proteins gain by associating to form quaternary…
A: In cellular environments, protein interaction networks contain crucial functional modules made up of…
Q: what is does the induced -fit model account for? 2 why are most enzyme inactive at higher…
A: Enzymes are high molecular-weight protein molecules that catalyse biochemical reactions. The…
Q: One student has synthesized the following peptide: LIVGFGIA, and predicted the properties of this…
A: Amino acids are biomolecules that have an amino group and a carboxyl group linked to the same carbon…
Q: Purine synthesis begins with the synthesis of IMP. Beginning with IMP, write the step(s) involved in…
A: Purines provide the essential components for DNA and RNA . They act as building blocks for the…
Q: Please calculate the number of ATP that can be generated from one molecule of the fatty acid shown…
A: Most of the body's fatty acids are oxidized by beta-oxidation. The oxidation of fatty acids on the…
Q: Which of the following statements about the TCA cycle is INCORRECT? O a. The TCA cycle can recover…
A: An inventive set of eight reactions makes up the TCA cycle. It is a crucial route that uses a…
Q: 1. What mRNA sequence does the following DNA template sequence produce? DNA…
A: As per the central dogma of molecular biology, genetic information is stored in the DNA. The genetic…
Q: 5) The nucleotides in the backbone of DNA are held together by bonds. A) hydrogen B) peptide…
A: Nucleic acids are composed of nucleotides (sugar, nitrogenous base & phosphate group). Nucleic…
Q: What explains the observation that FADH2 oxidation yields one less ATP than NADH oxidation by the…
A: Electron transport chain is a series of protein and organic molecules located in the inner membrane…
Q: How much ATP would be generated by having one molecule of oxaloacetate being completely oxidized to…
A: In glycolysis, a 6-carbon molecule of glucose-6-phosphate is broken down into 3-carbon pyruvate by…
Q: Which of the following occurs during the second round of the Q cycle (oxidized coenzyme Q =…
A: The Q cycle shows the sequential oxidation and reduction of CoQ, between the ubiquinol and…
Q: Identify which of the following pairs of amino acid residues can have hydrogen bonding between their…
A: Amino acids are the building blocks of proteins. The structure of protein is maintained by many non…
Q: Which of the following enzymes is inhibited as a result of insulin binding to its receptor? glycogen…
A: Insulin regulates the level of blood glucose by stimulating the uptake of glucose from the blood…
Q: Give biosynthesis of flavonoids by acetate pathway.
A: Flavonoids are polyphenolic secondary metabolites which is produced in plants and consumed by…
Q: In histones, there are high content of two residues: Lys and Arg, because these residues can a.…
A: One of the fundamental processes that keep living things functioning is controlled by DNA. They…
Q: Draw the structure of the following: (in the image provided) Use the amino acids below. F -…
A: Recall that: Amino acids have an amino group, a carboxyl group and a side linked to the same carbon…
Q: Draw the complete electron pushing mechanism for the reaction.
A: Oxidation of glucose into pyruvate followed by oxidation of pyruvate into acetyl CoA and then…
Q: Which three statements below describe critical functions of ubiquinone (Q) in the electron transport…
A: Ubiquinone is also known as Coenzyme Q (CoQ). Ubiquinone occurs in three redox states of CoQ-…
Q: True or False – During fermentation, pyruvic acid is reduced by FADH2 to free up FAD+ to keep…
A: Glycolysis is the collection of 10 enzymatically catalysed reactions that sequentially oxidises a 1…
Q: In the ß-oxidation pathway, the oxidation occurs at carbon [Select] acetyl group that becomes…
A: Fatty acids are carboxylic acids with a hydrocarbon chain ranging from 4 carbon to 36 carbons.…
Q: CH2OH 바 조 он г 어 H CH2OH ㅇ 애 1 에 Beta-Derunopyranose KH H+ H2M осH2он 애 애 애 alpha- D- erunopyrunose
A: Alpha and beta forms of monosaccharide sugars are called anomers. The two forms are isomers and…
Q: The first step in the catabolism of most amino acids is which of the following? Transfer of alpha…
A: Amino acids are biomolecules that have an amino group, a carboxyl group and a side group linked to…
Q: describe the experiment that proved chemiosmotic hypothesis.
A: The chemiosmotic model of ATP synthesis states that ATP synthesis occurs by movement of protons…
Q: Determine whether each event occurs during initiation, elongation, or termination. Initiation…
A: During translation, mRNA is translated into amino acid sequence. Translation occurs in three steps:…
Q: You perform a succinate dehydrogenase (SDH) assay on the fractions the isolated fractions. You read…
A: The sixth step of the Tricarboxylic Acid (TCA) cycle is catalyzed by succinate dehydrogenase (SDH).…
Q: Meselson-Stahl Experiment showed that DNA replication is semi-conservative. In the experiment, DNA…
A: During DNA replication, each polynucleotide strand serves as a template for the production of a…
Q: A scientist made mistakes during DNA extraction. On his first attempt, he blended the sample too…
A: Blending is done when DNA is to be extracted from multicellular samples like tissues of animals and…
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- Explain how each of the following processes complicates the concept of colinearity. Q. Alternative splicingThe method of Northern blotting is used to determine the amountand size of a particular RNA transcribed in a given cell type.Alternative splicing (discussed in Chapter 14) produces mRNAsof different lengths from the same gene. The Northern blot shownhere was obtained using a DNA probe that is complementary tothe mRNA encoded by a particular gene. The mRNA in lanes 1through 4 was isolated from different cell types, and equal amountsof total cellular mRNA were added to each lane. Explain these results.How is the splicing of U2-dependent introns different from that of U12-dependent introns? O a. U12-dependent introns are self-splicing. O b. U2-dependent introns have longer consensus sequences at the splice sites. O.U12-dependent introns have no branch site. d. The SR proteins in the spliceosomes are different. e. Most of the snRNPs in the spliceosomes are different.
- What is the order of the tRNA binding sites on the 70S ribosome with respect to the 5'→ 3' direction of mRNA? O a. PAE ОБ.ЕРА OC. AEP O d. PEA O e. E AP Which of the following is TRUE regarding eukaryotic RNA processing? O a. Functional individual FRNA cannot be produced without splicing. O b. Splicing of the MRNA precursor is done in the cytoplasm, while modification of the ends is done in the nucleus. OC. An unprocessed mRNA precursor is translocated into the cytoplasm to be modified before the translation. O d. Splicing of the mRNA precursor is done in the nucleus, while modification of the ends is done in the cytoplasm. O e. Transcription yields primary transcript, which can by itself yield a functional protein. RNA self-splicing demonstrates the role of RNA as a(n): O a. spliceosome. O b. intron. O c. nucleophile. O d. exon. O e. catalyst.Which of the following statements are true about eukaryotic mRNA?a. The sigma factor is essential for the correct initiationof transcription.b. Processing of the nascent mRNA may begin beforeits transcription is complete.c. Processing takes place in the cytoplasm.d. Termination is accomplished by the use of a hairpinloop or the use of the rho factor.e. Many RNAs can be transcribed simultaneously fromone DNA templateIS. Alternative splicing has been estimated to occur in more than 95% of multi-exon genes. Which of the following is not an evolutionary advantage of alternative splicing? Alternative splicing increases diversity without increasing genome size Different gene isoforms can be expressed in different tissues Alternative splicing creates shorter mRNA transcripts Different gene isoforms can be expressed during different stages of development.
- Through alternative splicing, eukaryotes (a) reinforce gene inactivation (b) prevent transcription of heterochromatin (c) produce related but different proteins in different tissues (d) amplify genes to meet the requirement of high levels of a gene product (e) bind transcription factors to enhancers to activate transcriptionWhich of the following is/are typically removed from pre-mRNA during nuclear processing in eukaryotes? (a) upstream leader sequences (b) poly-A tail (c) introns (d) exons (e) all the precedingNascent form of the mRNA A. undergoes splicing only after capping B. is also called hnRNA C. is polyadenylated after splicing D. participates in the spliceosome assembly for splicing E. joins snRNPs to form the spliceosome assembly B, C, D, E only A, B, C only A, B, C, D, E A, B, D, E only
- If an MRNA is alternatively spliced, then different introns are removed from a pre-MRNA, producing transcripts that will potentially encode proteins with different primary structures. I. the MRNA is found in a bacterial cell. II. transcription and translation of the MRNA will occur simultaneously. the alternative splicing happened in the cytoplasm. IV. Ay different exons from a pre-mRNA will be spliced together. V. the different MRNAS will all have poly-A tails. VI.How would you describe the "purpose" of alternative splicing? Alternative RNA splicing... is a common feature of prokaryotic gene expression O b. is a mechanism for increasing the rate of transcription O c. is due to the absence of particular snRNPs d. results in the production of different versions of proteins from a single gene O e. results in the production of similar proteins from different genesWhich of the following statements about pre-mRNA splicing is FALSE? a. Splicing of an intron requires consensus sequences at the splice donor, the splice acceptor and the branch point of the intron. b. The spliceosome contains proteins and RNA molecules. c. Some snRNAs base pair with splice consensus sequences on the primary transcript. d. Splicing happens before the export of the mRNA to the cytoplasm. e. Splicing happens in the cytoplasm, when spliceosomes move down the pre-mRNA in front of ribosomes.
