3. Draw the chemical mechanism (with electron-pushing arrows) for the first step of RNA splicing (as catalyzed by the splicosome). Be sure to explicitly show the attacking nucleophile, the phosphate at the intron-exon junction, the intron branch point and the leaving group in the reaction.
Q: The following pedigree tracks how cystic fibrosis (a recessive disorder) has passed in a family.…
A: Pedigree analysis helps us to understand the mode of inheritance of a particular disease by…
Q: Briefly explain why planting trees would mitigate the effects of global warming.
A: Planting trees and engaging in reforestation efforts play a crucial role in mitigating the effects…
Q: Can simple translocations ever be balanced? I know with reciprocal translocations that if you're…
A: Exchange of genetic information between different parts of the chromosome is called genetic…
Q: Assume that these two loci are the only sources of additive genetic variance for body mass. The…
A: Body mass is a complex trait that is influenced by both genetic and environmental factors. The…
Q: Birds: white breasted wood swallow, pied fantail, brown shrike, yellow vented bulbul, philippine…
A: The white-breasted wood swallow, pied fantail, brown shrike, yellow-vented bulbul, and Philippine…
Q: Intracellular signaling via ___________ is the primary mechanism of action for water-soluble…
A: Intracellular signaling refers to the process by which cells communicate and transmit information…
Q: 1) How lactic acid is formed 2) Why it is an issue in intense exercise 3) What happens if it…
A: Lactic acid is produced in red blood cells and muscle cells. It forms from the breaking down of…
Q: Draw a cross section (line-drawing only) of the root system of a herbaceous plant and a woody plant.…
A: Vascular plants have modified organs called roots that serve as anchors for the plant and absorb…
Q: You have a patient with a sore throat. You suspect Streptococcus pyogenes. S. pyogenes is a…
A: Streptococcus pyogenes are group A streptococcus, usually associated with mild and self-resolving…
Q: 1) Describe the reproduction in detail.
A: The processes necessary for an organism to survive and that mold its propensities for interacting…
Q: This video refers to Denisovans as a “Ghost Lineage.” In fact, Denisovans don’t even have a formal…
A: A type specimen is a single physical specimen that is designated as the representative of a…
Q: Write briefly about the "hobbit" species of hominin. What are the theories about its evolution? What…
A: Hobbit species existed from 70,000 to 100,000 years ago. It was a species of Hominin which was very…
Q: Neuroscience Students are celebrating the end of the year and have gotten together for a few…
A: Few important terms :Reflex action:It is a rapid and involuntary response to stimuli.An unexpected…
Q: Booster vaccines help to maintain immunity once immunity wanes True False
A: Vaccines can teach the body how to stop illnesses in their tracks. They achieve this by injecting…
Q: For this DTL, you will compare key stages of mitosis and meiosis. Not all stages are shown. Use the…
A: Cell division is the process by which a parent cell divides into two or more daughter cells. It is a…
Q: The figure below has a black line that shows how birth rate, a vital rate, changes with population…
A: Collection of all the individuals of the same species that are located in a particular area at a…
Q: What is meant by visual acuity? How does the eye adjust to facilitate this? Specifically, how do…
A:
Q: Is the sexual dimorphism of the early hominins more similar to a primate like the gorilla or to a…
A: Sexual dimorphism refers to the differences in size, shape, or other traits between males and…
Q: Ribs, Sternum and Appendicular Structures Ribs Vertebrates Cartilaginous Fishes Bony Fishes…
A: A deuterostomic animal that belongs to the phylum Chordata is called a chordate. All chordates have…
Q: What is thin layer chromatography?
A: Chromatography is a crucial biophysical method used in chemical research that allows for the…
Q: ) What is dna replicate, define the process in detail.
A: Most creatures include DNA, which contains the genetic information required for development,…
Q: Are there any diseases linked to actin filaments? Are any mutations that could halt the growth of…
A: Actin filaments are long, thin protein fibers that are found in all eukaryotic cells. They are part…
Q: • Both similar to CS1 • DNA2 Matches Csa CS1 CS2 DNA1 DNA1 DNA2 DNA2 Enz 1 Enz2 Enzi Enzz which…
A: DNA profiling or DNA fingerprinting is a technique used to identify and analyze an individual's…
Q: Cave paintings often depict various animals and other natural elements. What insights do you think…
A: Cave paintings give a window into understanding the relationship between early people and their…
Q: What molecules are
A: Biological membranes are made up of a lipid bilayer with a protein inserted in it. The cell membrane…
Q: What are the advantages and disadvantage of using spectrophotometry and CFU counting to estimate…
A: Spectrophotometry and colony-forming units (CFUs) are two different methods for quantifying…
Q: A patient has a low red blood cell count, and microscopic examination of his blood reveals an…
A: In the medical field, the connection between certain blood abnormalities and underlying health…
Q: Questions: 1. Select a discrete colony. Describe the appearance of the colony. 2. Describe the…
A: The study of bacterial cultures is an interesting aspect of microbiology. It includes the cautious…
Q: Intro to Neuroscience Question Explain your reasoning and why you chose that answer.: Which of the…
A: Nerve cells called neurons are responsible for sending instructions throughout your body to perform…
Q: OG2: a. Describe the effect of each of the following on the function of Kinesin, Dynein and Myosin:…
A: Dynein, myosin and kinesin are the motor proteins. These proteins move along either microtubules or…
Q: plot to blac $500 million stealth bomber, safely detonated one of the nukes in an abandoned mine.…
A: The process of taking in oxygen and exhaling carbon dioxide, which is a waste product is called…
Q: The following is part of an mRNA sequence, written from 5' to 3' (left to right): AUCAUCAAC Write…
A: Transcription is a process of formation of mRNA transcript from DNA sequence. This process includes…
Q: A large population of 100,000 bugs lives inside of building. A smaller population of 1,000…
A: Gene flow (migration) and genetic drift are two examples of the processes that might affect FST (or…
Q: surface temperature increases slightly POSITIVE FEEDBACK enhanced greenhouse effect surface…
A: Global warming is a phenomenon in which the overall average temperature of Earth increases. This is…
Q: Which of the following is true of a population undergoing evolutionary changes? O Alot of…
A: Evolutionary changes in a population refer to the gradual and cumulative changes in the genetic…
Q: 11. Can you think of any biological structure in a given environment where the most adaptive state…
A: The surface area to volume ratio is the ratio of the total surface area of an object or organism to…
Q: What are some limitations to using biochemical test as a classification method for bacterial…
A: Biochemical tests are a traditional method for classifying bacteria. These tests measure the ability…
Q: Upon performing the F₁ cross, the F2 generation consists of 10 individuals, all of whom are…
A: Probability is the chance of finding the outcomes. Two rules exist for probability- the sum rule and…
Q: following diagram shows a simulated microscopic view of a tissue sample taken from a patient where…
A: Mitosis is a type of cell division in which a cell divides into two without changing the number of…
Q: 5' cap amino acid aminoacyl tRNA synthetase anticodon codon EF-Tu-GTP EF-Ts eukaryote Kozak…
A: Three process combined together to form a central dogma that is replication where copy of genetic…
Q: 26) Identify the designated structures (highlighted enlargements) at the arrows.
A: This is definitely a cone of a non vascular plant. Some kind of leafy structure is also present.
Q: A sick child of 5 years old was taken to the children's infectious diseases department. The general…
A: Meningitis, an infection of the meninges (the protective membranes that cover the brain and spinal…
Q: need help solving this : In humans, the X chromosome is large in comparison to the Y chromosome. The…
A: Hemophilia is an X linked recessive disease. This means that mutation in 2X chromosomes in females…
Q: A part of an mRNA moled charged transfer RNA molecules (with their a the mRNA so that a dipeptide…
A: Translation is the process by which a polypeptide chain (protein) is produced from mRNA within the…
Q: A parental cross between homozygous wild-type red eyed females (X+ X+) were crossed with white eyed…
A: Chi-square (X2) analysis helps us to compare the observed data of an experiment to the expected…
Q: Which of the following is NOT true about the touch pathway for the hands? Travels up the dorsal…
A: The touch pathway, also known as the dorsal column-medial lemniscal pathway, is responsible for…
Q: 1) Carbohydrates A a) What is the composition of starch? al-Amylose and al-6am/lopectin (3
A: Starch, a vital polymeric carbohydrate, comprises a multitude of glucose monomers intricately linked…
Q: A female Drosophila fly is heterozygous for three recessive pigmentation mutations called pl, wh,…
A: Gene expression is a process in which the genetic instructions of genes are utilized to manage…
Q: What is the CORRECT way to classify the protein below according to its secondary- structure…
A: Proteins are indeed essential biomolecules responsible for various functions in the body, including…
Q: 8 Define osmosis and solve simple problems involving osmosis; for example, predict whether cells…
A: The movement of ions and molecules within and across the cell membrane is regulated by a variety of…
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images
- 25. A portion of an mRNA attached to a ribosome reads: 5′ GACAUGAACAGC 3′ If a tRNA with a methionine amino acid attached is in the P site of the ribosome, a tRNA with which amino acid attached will enter the A site? Group of answer choices 1. Asparagine 2. Lysine 3. Threonine 4. Glutamic Acid6. Indicate whether each of the following events occurs when tryptophan is high or when tryptophan is low by placing a check in each of the appropriate blanks. Share your reasoning. Tryptophan Tryp high Event Ribosome does not stall at Trp codons Region 2 of the leader pairs with region 3 Ribosome covers part of region 2 of leader Transcription is terminated before structural genes are transcribed1. Considering the following nucleotide sequence in an mRNA molecule: 5’ AUG UUA CGU AAU GCU GUC GAA UCU AUU UGC UUU ACA UAA 3' a) Write the sequence of the DNA template (antisense) strand from which the mRNA was synthesized. b) Write the sequence of the DNA coding (sense or informational) strand complementary to the template strand. c) Write the sequence of tRNA anticodon that corresponds to the given mRNA molecule. d) Write the amino acid sequence of the peptide synthesized from the given mRNA nucleotide sequence. e) Draw the structure of the pertide fragment made up of the first five (5) amino acids in the given polypeptide.
- 1. A DNA base sequence transcribed into messenger RNA in the following sequence: TTATCTTCGGGAGAGAAAACA. a. If you read from left to right, what amino acids are coded by this sequence? (Note: The initiation sequence is disregarded in this example.) b. If proflavine treatment caused the deletion of the first adenine nucleotide on the left, describe the changes that would occur in the first six amino acids coded by this sequence?30. Below is a pre-mRNA sequence that contains 2 exons and an intronic region. Based on your knowledge of the spicing reaction, predict the ligated exon sequence. [ | (hint: there is a consensus sequence for this "cut n paste' rxn.] 5'-ACGACAGGAUGAAGGUAAAUCGGGUAGGGGCGGCUGACUCUCUUUUUCCCUCAGGUCGUAA-3'38.start with four exons and show mutually exclusive splicing producing 1-2-4 and 1-3-4 spliced exons. Second, start with two exons and show alternate 5’ splicing producing 1-2 and 1a-2 spliced exons. In one cell type, the 1a-2 isoform is more prevalent. Explain how SR protein binding to an ESE would regulate this preferred isoform. Be sure to include U1 in your response and define ESE.
- 1. By use of a labeled diagram or a written description, distinguish the roles of thefollowing in elongation of a polypeptide: initiation complex, charged tRNAs, peptidyltransferase, Site A, Site P 2. What determines the initiation of translation? (Hint: there is more than one feature oftranslation.)1. How would the following affect BOTH transcription and translation of a particular multi- exon gene in a eukaryotic cell (for each address both transcription and translation of a particular multi-exan gene; also treat each independently): A mutation abolishing kinase activity in TFIIH a. b. A mutation abolishing mRNA binding in the snRNP U1 С. A mutation in aminoacyl tRNA synthetase for isoleucine such that it can't bind ATP (assume there is an isoleucine in the code)Which of the following statements is false? a. GTP is an energy source during various stages of translation. b. In the ribosome, peptidyl transferase catalyzes peptide bondformation between amino acids. c. When the mRNA code UAA reaches the ribosome, there isno tRNA to bind to it. d. A long polypeptide is cut off the tRNA in the A site so its Metamino acid links to the amino acid in the P site. e. Forty-two amino acids of a protein are encoded by 126nucleotides of the mRNA.
- 8. The following diagram illustrates a step in the process of translation. fMet Pro mRNA UAC GGG AUGCCCACG UAG a) Identify the following elements on the diagram. Aminoacyl site (A) Peptidyl site (P) Exit site (E) Amino end of the newly synthesized polypeptide chain Carboxyl end of the newly synthesized polypeptide chain Approximate location of the next peptide bond that will be formed2. Several techniques were used to study the degree of translocation of truncated intermediates in the synthesis of an integral membrane protein (with a single transmembrane domain). Experiments were performed in the presence of SRP and canine pancreatic microsomes. The intermediates were synthesized using a rabbit reticulocyte translation system in the presence of 35S-methionine. Of the techniques used to monitor the progress of synthesis and translocation/insertion,| we are concerned with the following: Sedimentation: chains associated with the microsomes are found in the pellet of a 75,000 rpm ultracentrifuge spin. Crosslinks: a photoreactive phenylalanine derivative was incorporated into the truncated chain, and crosslinking to protein and lipid was analyzed after photo-activation. The intermediates studied using these approaches had between 40 and 154 amino acids. All truncated proteins with more than 60 amino acids sediment by centrifugation at neutral pH, while only…5. E. coli ribonuclease H1 is an enzyme that catalyzes the hydrolysis of phosphodiester bonds in RNA. Its proposed mechanism involves a 'carboxylate relay,' as shown below. His124 Asp70 || -HN-CH-C -HN-CH-C- CH2 CH2 c=0 RNA substrate HN H. H. (1) Fill the blanks. In the reaction scheme above, His124 acts as a ( ). The purpose of this relay system is to deprotonate the water molecule (II) so that it becomes a better ( :0