Q: why are nervous and fluids important in living organisms?
A: Living organisms are metabolically active. They tend to respond to the external and internal…
Q: 12:15 Acellus Types ionary Instructions : Choose one of the following: - Directional selection:…
A: Directional selection is a negative natural selection mechanism in population genetics in which an…
Q: What types of observations allow a pathologist to identify the tissue of origin of a tumor? Why are…
A: A tumor is an abnormal growth of body tissue. Tumors can be cancerous (malignant) or noncancerous…
Q: Cellular respiration connects the degradation of glucose to the formation of ATP, NADH and FADH2 in…
A: Cellular respiration is the process of utilizing oxygen and food molecules to create energy, carbon…
Q: Discuss the heat shock response in E. coli. How does a factor switching story fit into this? How…
A: Introduction :- When a cell, tissue, or entire organism is subjected to elevated temperatures, the…
Q: cigarettes
A: chemical substance made when tobacco is burned. Tar contains most of the cancer-causing and other…
Q: Enumerate the different kinds of neuroglia/glial cells that support neurons. Characterize each…
A: The cells of nervous system the other than neurons which are imperable of generating and…
Q: How do blood proteins impact fluid movement?
A: Introduction: Blood consist of the proteins albumin and globulins are found in blood.the protein…
Q: An action potential signals the release of acetylcholine from the presynaptic neuron. It binds the…
A: An action potential signals the release of acetylcholine from the presynaptic neuron. It binds the…
Q: Conversion question: 3.357 meters = 0.000003357 micrometers 3357 micrometers O 0.003357 micrometers…
A:
Q: 2. Label the structures in the digestive system of the frog. Write all labels on the spaces…
A: Introduction A frog's digestive system starts from the mouth and ends at the cloaca. After food…
Q: Taxonomic hierarchy for giant pandas and koalas
A: Taxonomic hierarchy is defined as "the process of arranging various organisms into successive levels…
Q: Suppose a person was born without the ability to produce MHC I molecules. What problem would that…
A: MHC I It is one of the classes of major histocompatibility complex (MHC). It is found on the surface…
Q: Describe the development of pollen grain and the development of embryosac of flowering plants
A: Introduction :- Each pollen grain is a tiny body of different shape and structure that forms in the…
Q: Match the following statements with the appropriate term The terms are: a.Genetic polymorphism b.…
A: Introduction Evolution is the process of a species' features changing over numerous generations…
Q: Biological significance of mitosis
A: Introduction Mitosis is the process by which a cell copies its chromosomes before dividing them…
Q: Patient B., 60 years old, was hospitalized with the diagnosis "Myocardial infarction". On…
A: Myocardial infarction which is also known as heart attack commonly in population when blood is not…
Q: Discuss the two mechanisms that result in the termination of transcription - How do they differ and…
A: Transcription is a process in which RNA is synthesized with the help of the template strand of DNA…
Q: Explain why the activation of phospholipid scramblases facilitates the uptake and disposal of…
A: Introduction :- In multicellular organisms, apoptosis is a type of planned cell death. Cell death…
Q: True or false: the spinal cord (in adults) ends around L1 or L2 vertebrae. True or false: spinal…
A: The spinal cord is a long, tube-like band of tissue. It connects your brain to your lower back.
Q: The northern red-legged frog, or Rana aurora, is found along the western coast from British Columbia…
A: Reproductive isolation is the inability of a species to breed successfully with related species due…
Q: 1. Give the plant source, scientific name of the plant source, and the type of fiber used in each…
A: Hemp, ramie, cotton, and flax are the most often utilised plants for garment production. Hemp Hemp…
Q: Given the pedigree below, answer the questions that follow: a. Probable mode of inheritance: b.…
A: Introduction The pedigree shows how a trait is passed down over generations. The male member is…
Q: 1. What is composite materials? Describe biomass derived composite materials by picking one biomass.
A: From a biological standpoint, biomass refers to the mass of living organisms such as plants,…
Q: Multiple Choice Each of the numbered items or incomplete statements is followed by answers or by…
A: Given question: 78. Which of the following is not a QC function? a. Inventory control b. In-process…
Q: 1. Explain the divisions of the nervous system. 2. Summarize the events involved in the synaptic…
A: Note :- Since you have asked multiple questions im only answering the ist 3 as per bartleby…
Q: The municipality proposes to use reverse osmosis to remove CaCl2 from a salt water stream, whose…
A: Osmosis is a process where water flows from an area of high water concentration to an area of low…
Q: LE Manage Sources Insert Table of Figures Insert Index 3 Insert T Updat Update Index Mark Style: APA…
A: Hypotonic solution: solution having low amount of dissolved particles (includes salt and other…
Q: Exam e to search 389620231 What did amphibians develop that made them more advanced than their…
A: The anceators of amphibians was lobed finned fish silimar to present day lung fish. Gradually…
Q: Which of the following statements about mendelian or complex diseases true?. A Genome- wide…
A: Quantitative trait locus analysis is a statistical technique for attempting to explain the genetic…
Q: NG Sun Shrew Owl Energy Producer Primary Consumer Consumer Sun Shrew dan Questions: 1.Which organism…
A: Introduction Food chain- It is a linear sequence of organisms through which nutrients and energy…
Q: Fill out the data table attached below with regard to the medically significant bacteria. Attached…
A: Microorganism/Causative Agent: Salmonella Typhi GRAM REACTION OXYGEN REQUIREMENT SIZE SHAPE…
Q: 1. What is the concept of universality of the genetic code? What are the exceptions to this…
A: Introduction The sequence of nucleotides on m-RNA that code for an amino acid is known as genetic…
Q: 8. An 11-year-old boy falls out of his tree house and fractures his left humerus at midshaft. The…
A:
Q: How is modularity beneficial to animal specialization during the course of evolution? Illustrate…
A: The species usually change over time and become progressively divergent from their ancestors and…
Q: Q-6 Define: 1. Optimum temperature 2. Psychrophiles 3. Thermophiles 4. Mesophile
A: Introduction Extremophiles:- These are animals that live and thrive under extreme environmental…
Q: How does the scientific meaning of “theory” differ from the common vernacular meaning?
A: Science is derived from the latin word scientia, which means "to know". Science can't be proved by…
Q: what are the importance of immune system of the body in living organisms
A: The immune system is a control network of organs and immune cells that detect and kill foreign…
Q: A- BC C- D
A: Reproductive system and urinary system are connected in such a way in these both system use common…
Q: Create a Dichotomous key that includes Human Pig Aye aye Koala Giant panda
A: A dichotomous key is a useful scientific tool for identifying various organisms based on their…
Q: Think about the important functions of telomeres. Now, imagine a scenario in which a mutant…
A: Introduction Telomeres are repeating sequences that protect the natural ends of linear eukaryotic…
Q: What is the common name of the following? Euglena Foraminifera Plasmodium Paramecium Grantia
A: More than 1,000 species of single-celled, flagellated (i.e., bearing a whip-like appendage)…
Q: There is a report of a new disease affecting approximately 30% of the persons living in a small…
A: Introduction Infectious diseases are illnesses caused by bacteria, viruses, fungus, or parasites.…
Q: An individual heterozygous for 3 genes, Aa Bb Cc are test-crossed to aa bb cc and 1000 progenies are…
A: Note: There is an error, Abc - 145 instead it should be, ABC - 145. Given: An individual…
Q: Which female reproductive structure is equivalent in development to the penis in males
A:
Q: What is the concavity on the medial surface of left lung called?
A: The lungs are two spongy, air-filled organs on either side of the chest (thorax). The trachea…
Q: You inoculate 100 facultative anaerobic cells onto two media plates. You incubate one aerobically…
A: Introduction Bacteria are the smallest microscopic unicellular organisms on the earth. Bacteria can…
Q: Explain how mutation, genetic drift, and gene flow can all contribute to changes in allele…
A: An allele is one of two or more versions of DNA sequence (a single base or a segment of bases) at a…
Q: Apoptosis: regulated mechanism of cell death that serves to eliminate unwanted and irreparably…
A: Introduction Cell death occurs when a biological cell stops performing its functions. This could be…
Q: Answer questions 12-16 , I need the letter of your answer
A: Environment refers to the area where organisms live. Ecosystem is the organised community of living…
need help with the following question.
Step by step
Solved in 3 steps
- Propose a mutation for Uniprotkb-P39086 and it’s effectHomozygosity for extremely rare mutations in a humangene called SCN9A cause complete insensitivity topain (congenital pain insensitivity or CPA) and a totallack of the sense of smell (anosmia). The SCN9A geneencodes a sodium channel protein required for transmission of electrical signals from particular nerves inthe body to the brain. The failure to feel pain is a dangerous condition as people cannot sense injuries.The SCN9A gene has 26 exons and encodes a1977-amino acid polypeptide. Consanguineous matings in three different families have resulted in individuals with CPA/anosmia. In Family 1, a G-to-Atransition in exon 15 results in a truncated protein that is898 amino acids long; in Family 2, deletion of a singlebase results in a 766-amino acid polypeptide; and inFamily 3, a C-to-G transversion in exon 10 yields a458-amino acid protein.a. Hypothesize as to how each of the three SCN9Amutations affects gene structure: Why are truncatedproteins made in each case? b. How would you…Describe and explain the 3-D structural change to the protein (uniprotkb-p39086/gene regulator 5) upon initial binding.
- Transposable elements cause mutations when insertedwithin a gene. These elements disrupt the continuity of agene. Introns also disrupt the continuity of a gene, yet thegene is still functional. Explain why the presence of anintron in a gene does not inactivate that gene but insertionof a transposable element does.Scientists have exploited the siRNA pathway toperform a technique called RNA interference—ameans to knock down the expression of a specificgene without having to make mutations in it. Theidea is to introduce dsRNA corresponding to thetarget gene into an organism; the dsRNA is thenprocessed into an siRNA that leads to the degradation of the target gene’s mRNA. One clever methodfor delivery of the dsRNA to some organisms (thenematode C. elegans, for example) is to feed thembacteria transformed with a recombinant plasmidthat expresses dsRNA.a. Draw a gene construct that, when expressed from aplasmid in bacteria, could be used to knock downby RNA interference the expression of gene X ofC. elegans.b. How can you test if gene X expression is obliterated in worms that have eaten the bacteria transformed with a plasmid containing your construct?c. Do you think that only gene X expression will beaffected in these worms? Explain.Of all the genes in the human genome, the ones withthe most characterized Alu insertions are those thatcause hemophilia, including several insertions in thefactor VIII and factor IX genes. Based on this fact, yourcolleague hypothesizes that the Alu element prefers toinsert into these genes. Do you agree? What other reason can you provide that also explains these data?
- Recently, scientists constructed a transgene that expresses a mutant form of Drosophila histone H3 inwhich lysine 27 in the histone tail was changed to methionine (H3K27M). Expression of the H3K27Mtransgene results in aberrant development of fruit fliesbecause of inappropriate expression of many differentgenes. Explain this finding.A cloned gene fragment contains a regulatory element that isrecognized by a regulatory transcription factor. Previousexperiments have shown that the presence of a hormone resultsin transcriptional activation by this transcription factor. To studythis effect, you conduct an electrophoretic mobility shift assayand obtain the following results: Explain the action of the hormone.If all members of a transposable element family can besilenced by dsRNA synthesized from a single familymember, how is it possible for one element family (likeTc1) to have 32 copies in the C. elegans genome whileanother family (Tc2) has fewer than 5 copies?
- The TBX20 transcription factor is important for the developmentof heart tissue. Deletion of the Tbx20 gene in mice results in poorheart development and the death of mice well before birth. Tobetter understand how TBX20 regulates heart development ata genetic level, Sakabe et al. (2012. Hum. Mol. Genet. 21:2194–2204) performed a transcriptome analysis in which they comparedthe levels of all mRNAs between heart cells from wild-typemice and mice with Tbx20 deleted. This study concluded that TBX20 acts as an activator ofsome genes but a repressor of other genes in cardiac tissue.How might a single transcription factor have oppositeeffects on the transcription of different genes?Six strains of E. coli (mutants 1–6) that had one of thefollowing mutations (i–vi) affecting the lac operonwere isolated.i. deletion of lacYii. ocmutationiii. missense mutation in lacZiv. inversion of the lac operon (but not an inversion ofthe lacI gene)v. superrepressor mutationvi. inversion of lacZ, Y, and A but not lacI, P, oa. Which of these mutations would prevent the strainfrom utilizing lactose?b. The entire lac operon (including the lacI gene andits promoter) from each of the six E. coli strainswas cloned into a plasmid vector containing an ampicillin resistance gene. Each recombinant plasmidwas transformed into each of the six strains to create partial diploids. In analysis of these strains, mutant 1 was found to carry a deletion of lacY, so thisstrain corresponds to mutation i in the list above.Which of the other types of mutations would be expected to complement mutant 1 in these partial diploids so as to allow lactose utilization?c. In part (b), each strain was plated on…Suppose that a new mutation lacIes, ('es' stands for ‘extra-strength’) has been discovered in the lac operon that allows the lac-repressor to bind even to the lacOc operator. Other properties of lacIes repressor remain normal (that is the same as of lacI+). Given this genotype Is P+ Oc Z+ Y- / Ies P+ O+ Z+ Y+ , under which conditions will the gene lacZ be transcribed to produce β-galactosidase and the gene lacY transcribed to produce permease? A) With lactose, β-galactosidase and permease are produced, without lactose they are not produced B) With lactose, β-galactosidase is produced, without lactose it is not; permease is never produced C) β-galactosidase is always produced and permease is never produced D) With lactose, β-galactosidase and permease are produced, without lactose they are also produced E) β-galactosidase is always produced and permease is produced only in the presence of lactose