Q: Joe is heterozygous for a dominant genetic disease. His wife, Jenny does not have the disease. They…
A: Hansbsb In order to establish that a marker is responsible for the disease, it must be present in…
Q: definition of global warming what are the factors that cause global warming Consequences of global…
A: With the increase in harmful chemicals in the Earth’s atmosphere, there has been an increase in the…
Q: Two adjacent grassland communities share many plant species, but some species are only found in one…
A: Biodiversity is one of the most essential and sustaining features of the our ecosystem. Biodiversity…
Q: Please consider the figure attached i. The ordinate (i.e., 'y-axis') represents values for the C…
A: The H1N1 influenza virus is an orthomyxovirus with virions that range in size from 80 to 120 nm and…
Q: The two lungs of human are not identical size. Why?
A: Lungs are the part of respiratory system. They are presented in a pair and situated in the thoracic…
Q: Fig. 1 A Fig. 3 B Hive Fig. 2 Forager 400 m 1200 m 40⁰ 65⁰ Fig. 4 phy.com B N S A E Receiver bee
A: A waggle runs on the vertical comb (A) oriented 45 degrees to the right of "up" which denotes a food…
Q: 16. When a nucleophile attacks the ß phosphorous atom of ATP, what kind of transfer occurs? A. B. C.…
A: A phosphoryl group is transferred from a molecule that is the donor in a phosphoryl transfer…
Q: K+ ect ] A Na+ ATP B Glucose ry active transport is being shown by transporter ect ] which uses…
A: Active transport is the type of transport that requires a transport protein. It is opposite to the…
Q: The antibiotic binds reversibly to an allosteric site on the ribosome. Which of the following will…
A: In competitive inhibition, inhibitor binds to active site, in non-competitive inhibition, inhibitor…
Q: Question: I have an unknown bacteria project. I have been given two unknown bacteria. I found out…
A: In bacteriology, bacteria are classified into gram-positive and gram-negative based on the results…
Q: Lycophytes are more closely related to mosses and hornworts than they are to angiosperms. Group of…
A: Lycophytes are vascular plants that bear spores on them. They are seedless and comprise of two main…
Q: You are working with two different yeast cultures to study their genetics. But, you are not sure…
A: Saccharomyces cerevisiae, a yeast species, mates when two haploid cells of opposing mating types…
Q: What’s the connection between life balance or life integration ?
A: "To shape, coordinate, or blend into a working or cohesive whole" is the definition of the verb…
Q: If you turned off the light, how would you expect the amounts of ribulose 1,5-bisphosphate and…
A: Photosynthesis is the process of converting light energy into chemical energy by plants and other…
Q: The X and Y chromosomes have a large number of LINE transposons. True False
A: LINE transposons are mobile genetic elements that are found in the genomes of many eukaryotic…
Q: NADH molecules
A: Biochemical pathways: These are a series of step by step interconnected biochemical reactions where…
Q: The two reactions below and determine if they are exergonic or endergonic reactions +00 00 reactants…
A: Metabolic process are the processes in which bigger molecules are formed from small molecules or are…
Q: 84 Explain how we can find the genes that are related to one organismal trait QTL: is a region in…
A: A phenotype is determined by many factors including some genetic factors and environmental factors…
Q: Different sugars prove to be easier or harder for yeast to m you can get from each different sugar…
A: glucose produce more energy in comparison of other sugar molecules. it is easily metabolise and…
Q: 6. State the various effects of sympathetic and parasympathetic neurons on the following organs of…
A: The nervous system is a complex network of nerve cells and pathways that carries information to and…
Q: How many Barr bodies will be visible in cells from a person with the karyotype depicted below? 18…
A: KARYOTYPE: The complete set of chromosomes of an individual is known as a karyotype. > A male…
Q: an original post answering the 2 questions, using at leas question 1: what are 2 good potential…
A: SARS-COV-2 virus is responsible for the recent pandemic and unnatural number of fatalities. It is an…
Q: Antigen-presenting cells make contact with T-cells via cellular junctions. Which of the following is…
A: There are different cell junctions that are present between the cells that help in cell…
Q: Please connect the following 50 terms into a concept map (see next page for an example) aka flow…
A: A feedback mechanism in a live body is a physiological regulating system that works to return the…
Q: What is the common and reliable way of quantifying serum protein fractions, provide thereference…
A: Answer : the common and reliable way of quantifying serum protein fractions is : biuret reaction…
Q: Describe what you observe in the cells, paying particular attention in the positioning of the cell…
A: The science of structure and functioning of cells is known as cell biology, and it is based on the…
Q: If you placed a blood sample in the clot tube at 8am, left it on the counter all day and finally…
A: Waiting too long (optimum is 30-60 minutes) between blood collection and centrifugation allows the…
Q: You are tracing the inheritance of petal color in tropical sandflowers. You suspect that the…
A: In this test, we have 1204 white petal flowers, 296 orange petal flowers and 101 yellow petal…
Q: In a large population of chimpanzees, there is a recessive genetic condition telactalase…
A: Hardy-Weinberg's principle gives geneticists a tool to determine when evolution is occurring. It…
Q: It is the least reliable method of contraception: intrauterine device condom diaphragm rhythm method…
A: Ans - D) Rhythm Method The rhythm method refers to tracking the ovulation or menstrual cycle of the…
Q: Which of the following statements about trp operon regulation is TRUE? A. Low trp levels result in…
A: Lac Z is a gene that encodes the enzyme β-galactosidase, which catalyzes the hydrolysis of lactose…
Q: What is phylogenetics? What is the main molecule studied in this field? Describe and discuss how two…
A: Phylogenetic studies help to compare different species to establish their evolutionary relationship.…
Q: 2. According to the phylogenetic tree, which of your fishes are most closely related to each other?…
A: Seawater is denser than freshwater, marine fish have smaller swim bladders than freshwater fish. The…
Q: The most common sexually transmitted infection in the USA is trichomoniasis caused by Trichomonas…
A: Diseases known as sexually transmitted diseases (STDs) are communicated from person to person…
Q: Describe the formation and components of the divisome, including a discussion of the key molecular…
A: Bacteria divide by cell division which is also a mode of reproduction. Cell division includes the…
Q: . Code the following mRNA strand into amino acids AUGUGUCGGGACACAUAA
A: Introduction An amino acid is any organic acid that has an alpha carbon atom which is attached to an…
Q: 25. A bacteriophage virus infects a bacterial cell, causing the cell's own chromosomal DNA to become…
A: Gene transfer is a method in which genetic material is transferred from one organism to another…
Q: Sometimes a restriction in genetic variability is imposed on populations by natural catastrophes…
A: Evolution is a phenomenon in which there occur transformation of life form from much simple to more…
Q: Construct a sex-linked cross on a black male cat and a female orange cat. The genotypes involved are…
A: The phenotypes of the two types of cats are Black and Orange. The genotypes involved are XB, XO, and…
Q: Describe what happens to the chromosome through Meiosis 1 and Meiosis 2, and indicate how this…
A: Homologous pairs means it is the pair of chromosome in which one of the set (chromosome) is…
Q: Is the following statement true or false? "Proteasomes are involved with various cell processes.…
A: The proteasomes are the complex of proteins called proteases that break down the unwanted proteins…
Q: Flower diameter in sunflowers is a quantitative trait. Each upper case allele provides a fixed…
A: Answer: 1/16 When parents are crossed All F1 progeny have AaBb. When F1 is crossed to produce F2…
Q: 1. How does sensation arise? 2. Explain the following somato sensory pathway a. First order…
A: Different parts of the brain: 1. Cerebrum: The largest part of the brain, it is responsible for…
Q: For hemophylia A , the gene involved is (gene 8 ) is a X chromosome), what effects of this altered…
A: Genetic alterations (mutations) in the F8 gene lead to haemophilia A. In biology, a mutation isan…
Q: When comparing the mode of action of benzopyrene with ethidium bromide, one sees that both have a…
A: Gel electrophoresis is characterized as a technique that is utilized for the separation of DNA…
Q: Which of the following glands is not a component of endocrine system? thyroid gland adrenal gland…
A: Glands are the organs that secrete fluids. Endocrine glands are the ones that do not have ducts.…
Q: Which direction is upstream (left or right)? Possible Answers: A. Right - the promoter lies…
A: DNA and RNA are nucleic acids that serve as the genetic material of living organisms. They are…
Q: Which of the following describes the purpose of GWAS analysis OGWAS analysis identify genes that are…
A: GWAS, or Genome-Wide Association Study The aim of genome-wide association studies, or GWAS as we…
Q: A meadow is home to a population of plants of a particular species. Among these individuals are 125…
A: Introduction : Genetic traits are passed down through inheritance from parents to their offspring,…
Q: People have been known to do things to increase the amount of hemoglobin, the oxygen transport…
A: People (usually athletes) take certian drugs or substances to increase the amount of haemoglobin,…
In the experiment described above, state what each of these parts of the experiment was:
- Independent variable
- Dependent variable
- Control group
- Experimental group
- One controlled variable
Step by step
Solved in 2 steps with 2 images
- Before JCVI-syn3.0 was produced, what steps were used to create a synthetic Mycoplasma cell? Put the events below into the correct order. Drag and drop the events into the proper sequence from left to right. ▸ View Available Hint(s) First Step Transformed cells are detected by the presence of lacz, which causes them to cleave Xgal and produce a blue color. Yeast is transformed using Mycoplasma mycoides fragments. The synthetic chromosome is transformed into Mycoplasma capricolum. The synthetic Mycoplasma mycoides chromosome is purified. DNA fragments assemble through homologous recombination in yeast. Reset Help Last StepYou have identified five genes in S. cerevisiae that are induced when the yeast are grown in a high-salt (NaCl) medium. To study the potential roles of these genes in acclimation to the growth in high-salt conditions, you wish to examine the phenotypes of loss- and gain-of-function alleles of each. How will you do this?An ade+ arg+ cys+ his+ leu+ pro+ bacterial strain is knownto be lysogenic for a newly discovered phage, but the siteof the prophage is not known. The bacterial map isleucysarghisadeproThe lysogenic strain is used as a source of the phage, andthe phages are added to a bacterial strain of genotypeade- arg- cys- his- leu- pro-. After a short incubation,samples of these bacteria are plated on six differentmedia, with the supplementations indicated in thefollowing table. The table also shows whether colonieswere observed on the various media.PresenceMedium Ade Arg Cys His Leu Pro of colonies1 - + + + + + N2 + - + + + + N3 + + - + + + C4 + + + - + + N5 + + + + - + C6 + + + + + - NNutrient supplementation in medium(In this table, a plus sign indicates the presence of anutrient supplement, a minus sign indicates that asupplement is not present, N indicates no colonies, and Cindicates colonies present.)a. What genetic process is at work here?b. What is the approximate locus of the prophage?
- In this activity you will analyze the results of experiments that investigate nutritional requirement of several mutant strains of yeast. The mutations in these strains cause a nutritional requirement for an amino acid, such that the strains will not grow in media that lack one specific amino acid. Any mutant that has a nutritional requirement is called an auxotroph, and is incapable of growing in a "minimal medium" containing only a carbon source (e.g., glucose), a simple nitrogen source (e.g., ammonium sulfate), and various salts and minerals. Such strains can be supported on a medium supplemented with only the missing nutrient or on a "rich" medium that contains amino acids, vitamins, nitrogenous bases, etc. (often in the form of an extract from yeast). The wild-type individual that can synthesize the metabolic component is a prototroph, and is capable of growth on minimal medium. The mutant strains in this activity are unable to synthesize tryptophan, lysine, or histidine; one…One hallmark of cancer cells is their ability to divideindefinitely, in contrast with most normal somaticcells that undergo senescence after 30 to 50 generations of divisions. We saw in this chapter that one reason for this difference is that many cancer cellsexpress the telomerase enzyme that can mediate telomere lengthening.Interestingly, about 15% of tumors do not expresstelomerase. Instead, they lengthen their telomeres byan alternative pathway. Tumor cells of this class appear to have telomeres that are highly heterogenous inlength; some telomeres have many more TTAGGGrepeats than others.a. Diagram an event involving homologous recombination that would allow some telomeres in thesecells to become longer. What feature(s) of telomeresmake(s) such homologous recombination possible?b. Does this recombination need to occur between homologous telomeres (that is, telomeres of the samearm of the same chromosome)? If such recombination could occur between nonhomologous telomeres, how might…The results of the fluctuation test (Fig. 7.5) were interpreted to mean that different numbers of mutantbacteria preexisted in each of the 11 culture tubes because the mutations arose spontaneously at differenttimes during the growth of each culture. However, another possibility is that the differences in the numberof colonies on the plates are simply due to differencesin the ability of the petri plates to support the growthof colonies. For example, perhaps the selective agentor the nutrients in the media were not evenly distributed in the molten agar poured into the petri dishes.What experiment could you do to determine whetheror not differences in the petri plates were a factor inthe experiment?
- You have isolated a strain of mutant yeast cells that divide normally at 25 degrees Celsius but cannot ente4 M phase at 37 degrees Celsius. You found that the gene for M cdk is not mutated. Which of the following temperatures sensitive mutations could be responsible for the.behavior of this strain of yeast? Inactivated of an enzyme that normally degrades m cyclin; Inactivated of a protein that normally triggers the synthesis of m cyclin; Inactivated of a protein kinase that normally Inactivate the cdk; none 2. Which of the following statements about the anaphase promoting complex is false? It promotes the degradation of proteins that activates mitosis; it inhibits m cdk activities; it becomes active at the very beginning of metaphase; it is activated by m cdk 3. During cancer development:.? Cells accumulate mutations in a fixed order which results in increase rate of cell division; the inheritance of mutations caused by dna damage is essential for cancer progression; there is typically…A pure culture of an unknown bacterium was streaked onto plates of a variety of media. You notice that the colony morphologyis strikingly different on plates of minimal media with glucose compared to that seen on trypticase soy agar plates. How can you explain these differences in colony morphology? Also, describe what happens when a nonsense mutation is introduced into the gene encoding transposase within a transposon and why is it more likely that insertions or deletions will be more detrimental to a cell than point mutations?why does a clone of cells produceonly one type of G-6-PD enzyme? What would you expect to happen if a clone was derived from an early embryonic cell? Whydoes the initial sample of tissue produce both forms of G-6-PD?
- You have just discovered a protein in mice that may be aneffective cure for cancer, but it is present only in tiny amounts.Describe the steps you would use to produce this protein intherapeutic amounts. Which host would you want to clonethe gene into and why? Which host would you use to expressthe protein in and why?The family of a sixth-grade boy in Palo Alto, California, wasinformed by school administrators that he would have to transferout of his middle school because they believed his mutation ofthe CFTR gene, which does not produce any symptoms associatedwith cystic fibrosis, posed a risk to other students at the schoolwho have cystic fibrosis. After missing 11 days of school, a settlementwas reached to have the boy return to school. What ethicalproblems might you associate with this example?Some people have a genetic predisposition for developing priondiseases. Examples are described in Table 25.6. In the case ofGerstmann-Straüssler-Scheinker disease, the age of onset istypically 30–50 years, and the duration of the disease (whichleads to death) is about 5 years. Suggest a possible explanationwhy someone can live for a relatively long time withoutsymptoms and then succumb to the disease in a relativelyshort time.