Q: 1). What's the science behind athletes' intake of creatine supplements? 2). what happens to our my...
A: Introduction: When referring to either a heart muscle cell (cardiomyocyte) or a smooth muscle cell (...
Q: Compared to pretraining, adaptation to aerobic training results in O a decrease in maximal Q due to ...
A: Aerobic exercise helps in increasing the circulation in heart, lungs and blood vessels and strengthe...
Q: Describe the relationship between the organ systems of the human body and the individual needs of ea...
A: Cellular respiration is the process by which organisms mix oxygen with food molecules, transferring ...
Q: the DNA extraction from fruit laboratory, by what process did cell lysis occur decanting filtering ...
A: Understanding the basic terms used in DNA extraction: Decanting: the process of separating the sed...
Q: Compare and contrast how gas exchange is carried out in insects and humans. How does this relate to...
A: Exchange of gas in insect is done by tracheal system. Insects respiration is highly variable. Me...
Q: 2. Briefly describe how photons are created in the x-ray tube? 3. What is primary radiation and wher...
A: X ray tube uses energy to produce X rays. X ray tube is used in wide variety of medical instruments ...
Q: True or False: You only have to cite sources that you use in written papers. It is fine to omit sour...
A: There are few important points that should kept in mind : While publishing or writing a paper we mu...
Q: GIVE A CONCLUSION OBSERVING MICROORGANISMS
A: The Microorganisms are representatives of all microscopic life forms except, the viruses. They exhib...
Q: Which of the following factors is said to contribute to the Dust Bowl of the 1930s? I. Strong winds ...
A: Introduction: Dust Bowl:a region of land where vegetation has disappeared and soil has been reduced ...
Q: Identify each of the structures in the table below. Match the letters to the correct name. С. D. E. ...
A: A. Hemoglobin molecule is made up of four heme groups surrounding a globin group, forming a tetrahed...
Q: Define edema and describe how it develops.
A: As blood circulates throughout the body's tissues, waste products such as proteins and fluids are le...
Q: Speculate on why there were more three year olds than two year olds in the sample. Give a reasonable...
A: A perch chart is a an age-based demographic.
Q: Why doesn't yeast and water produce CO2?
A: * Fermentation is a process in which a sugar molecule breaks down to form ethanol in yeast or lactic...
Q: Find the time for each specific phase using the formula given. Show steps please. Thanks
A: Mitosis may be a variety of biological process within the cell cycle wherever One cell divides into ...
Q: How is anaphase different from anaphase i?
A: Answer :- In anaphase 1 in meiosis, homologous sets are isolated however sister chromatids stay cons...
Q: REVIEW QUESTIONS: 1. Which type of evidence for evolution is most accurate in determining evolutiona...
A: 1. The evolutionary relationships between related species can be interpret by using a phylogenetic t...
Q: Which of the following structures is not an example of a connective tissue? A. Blood B. Neuron C. C...
A: Cells of animal body that are similar in origin, structure and function are organised to form struct...
Q: 3.9 How many different kinds of F, gametes, F, genotypes, and F, phenotypes would be expected from t...
A: Gregor Johann Mendel is considered to be the father of Genetics. he came up with the three laws of i...
Q: Describe the genetic code, triplet hypothesis and it’s three characteristics using an example
A:
Q: LINNAEUS The old scientific names be
A: As we know that our world is full of biodiversity. Biological classification is used to classify the...
Q: The following table displays the genotypes and corresponding phenotypes for human blood type. Human ...
A: Codominance means neither allele can mask the expression of another allele. The effect of one allele...
Q: What is a practical strategy for eating out more healthfully? A. Take half home for another time B. ...
A: *The choosing of food plays crucial role in leading healthy life. * The food should be consist of al...
Q: Are carbs all good or all bad? In what ways are they important and in what ways are they detrimental...
A: Introduction: Carbohydrates are macronutrients and one of the three basic sources of energy for our ...
Q: Describe each animal cell organelle and its function.
A: Animal cells eukaryotic cells, contain different organelle, such as nucleus, mitochondria, ribosome,...
Q: How does gas exchange systems facilitate the exchange of gases between the environment and the cells...
A: gas exchange systems facilitate the exchange of gases between the environment and the cells of organ...
Q: 8. In Lake Taal, a species of Sardinella is found to be existing only in that place and nowhere else...
A: Option A is incorrect because:- Cosmopolitan species are present globally, in a particular type of h...
Q: You are working with a new species of spider in the lab. Wild type spiders have black legs and long ...
A: DNA is one of the genetic material. The genes are present on DNA for regulating activities of cells....
Q: Geologic changes often accompany mass extinction of life forms. Why do you think this is true?
A: Introduction:- To understand this question first we need to know what is mass extinction and major g...
Q: What is the biggest difference between the ruminant and monogastric digestive systems?
A: Ruminants: Ruminants (suborder Ruminantia) are herbivorous grazing or browsing mammals with big hoo...
Q: Simply True or False. Please
A:
Q: 4. Observe the following diagram carefully anc (a) Identify the "B" subunit. Explain its role as a d...
A: DNA and RNA act as the genetic material in organisms. Here DNA stands for the deoxyribo nucleic aci...
Q: Can u help me answer number 5-7 ?thank youu
A:
Q: . Compare and contrast the pathways of anaerobic cellular respiration to aerobic cellular respiratio...
A: Cellular respiration in simply terms, is the set of metabolic processes by which organism produces c...
Q: Differentiate between droplet vehicle transmission and airborne transmission. Many people find that ...
A: Transmission is defined as the transfer of a pathogen that causes communicable disease from an infec...
Q: If a virus has a negative-sense RNA genome, what enzymatic activity (if any) will be found as part o...
A: The main strategy of virus having a negative-sense RNA genome is to synthesize positive sense RNA . ...
Q: How did the investigators conclude that the suspect was indeed the murderer? 2. What if a strand of...
A: NOTE- Since you have posted a question that has multiple subparts, we will be solving the first 3 pa...
Q: Section 2.3 Assignment: Fun 19. Proteins that stick out of the cell membrane and allow cells to reco...
A: 19) These proteins which comes out of the cell membrane and helps in the recognition of the foreign...
Q: In the founder effect, O allele frequencies always deviate from the parental population. drift only ...
A: The correct option is a and b. Actually, founder effect is a case of genetic drift, that occurs whe...
Q: In negative feedback, the variable being regulated is changed in the ______ direction, while in posi...
A: Answer C) oppozit, same
Q: How does the interaction of the Down Syndrome affect’s your cell’s ability to undergo endocytosis an...
A: Down syndrome is caused by trisomy 21 the person has three copies of chromosome 21, instead of the u...
Q: Match the specimen collection techniques to the culture test associated with the technique. needle p...
A: Needle placement between first cervical vertebra and foramen magnum ------ 1. Cisternal punctu...
Q: How does the C4 plants are different than C3 plants? How do these plants conserve water?
A: Photosynthesis is the process by which chlorophyll containing organisms produce organic molecules (c...
Q: Make a short poem about reproductive system
A: ANSWER: A short poem on Reproductive System is narrated below.
Q: The four characteristics of a healthful diet are? A. Diverse, plentiful, balanced, nutrient-dense B....
A: Q. The four characteristics of a healthful diet are? A. Diverse, plentiful, balanced, nutrient-dense...
Q: Find an article that pertains to ethics and the health care professional. This might include a relig...
A: Certain constraints are necessary to ensure the legal, equitable, and efficient delivery of health c...
Q: Organisms with circulating body fluid that is separate from the fluid surrounding the body cells hav...
A: Option a is correct.Closed circulatory system.
Q: What do empty calories represent? A. Calories that come from nonorganic sources B. Energy derived fr...
A: Introduction:- Foods and drinks that contain no significant nutrients but are high in calories are s...
Q: What would be the effect on flowering time of over-expressing VIN3 (i.e., 35S:VIN3) in a winter annu...
A: In Arabidopsis rapid-cycling accessions. photoperiod is the most important environmental factor infl...
Q: Complete the table by checking the correct column for each statement.
A: Recombinant DNA technology is a kind of genetic engineering method in which various DNA from differe...
Q: lease helpp
A: One of an important human behaviour which affects respiratory system is SMOKING.
write a short discussion
Step by step
Solved in 2 steps with 3 images
- Why were you able to see the DNA after adding the ethanol? What chemical process led to the visible masses of DNA? Why would some students have seen more DNA from their cheek cells at this step compared with other students?The Bacteria Escherichia coli DNA genome has a molecular mass of about 3.1 X 109 In your answers, show how you came up to each result? How long is this DNA in micrometer (μm)Visually compare the intensity of your team’s Plant-DNA sample with the intensity of the 3 kb band on the DNA ladder (see figure posted below). For example, if your Plant- DNA sample closely matches the 3 Kb band, this represents approximately 125 ng of total DNA. Divide the approximate mass (ng) of DNA in your sample by the volume loaded in the gel minus the loading dye added (i.e., 12 – 2 = 10 μL, since you loaded 12 μL from a 24 μL sample that contained 20 μL DNA prep + 4 μL loading dye. What is the DNA concentration of your sample? ______ng/μL
- In a melting profile for DNA, the absorbance at 260 nm increases as result of the disruption of the DNA structure. What is the fundamental physical basis for the absorbance increase? a. the effective concentration of DNA changes b. the absorbance of DNA is highly sensitive to temperature c. native DNA absorbs light more strongly than denatured DNA because the bases are stacked d. denatured DNA absorbs light more strongly than native DNA because the bases have become unstackedYou perform an experiment to determine the complete melting profile of a relatively long DNA duplex with 80% G:C base pairs. Sketch a graph of Absorbance at 260 nm (Y-axis) vs. Temperature (X-axis). Label the location of the Tm and describe what is happening to the DNA structure in each segment of the graph (lower Temps, highest Temps, at Tm).When you measured your DNA preparation concentration using the NanoDrop spectrophotometer, it indicated that the DNA concentration was 0.550 ng/uL. Convert this concentration into ug/mL.
- Give only typing answer with explanation and conclusion You are studying a strain of bacteria that carries a temperature-sensitive mutation in one of the genes required for DNA replication. The bacteria grow normally at the lower temperature, but when the temperature is raised they die. When you analyze the remains of the bacterial cells grown at the higher temperature you find evidence of partly replicated DNA. When the strands of this DNA are separated by heating, numerous single-stranded DNA molecules around 1000 nucleotides long are found. Which of the proteins listed below are most likely to be impaired in these mutant bacteria and why?: Primase, Helicase, or DNA Polymerase?You now redo the experiment but instead of an SDS gel you run a native gel followed by completing the westernblot. Why did you run a native gel? What parameter are you interested in here?If DNA concentration is 2 grams, what would be the molar concentration of human DNAin a human cell?
- Which of the following DNA strands (oligonucleotides) would have a higher melting temperature? (Note: only one strand is shown, but assume that each is double stranded) Select one: a. They would all have about the same melting temperature. b. ATGATCTACTATGAT c. ATGCGTCGCGCAGCT d. ATGATCGATATGCCA e. ATGCGATCAGCTACGWhich statements are true? Explain why or why not.1 Because the DNA double helix is only 2 nm wide—well below the limit of resolution of the light microscope—it is impossible to see chromosomes in living cells withoutspecial stains.2 A fluorescent molecule, having absorbed a singlephoton of light at one wavelength, always emits it at a longer wavelength.Both protein and DNA are run together in an isoelectric focusing (IEF) electrophoresis using the immobilised pH gradient (IPG) strip with pH range of 4-7. After the electrophoresis and staining, only ONE band is observed on the middle of the IPG strip. The band is a protein band. Briefly explain why only the protein band and NOT the DNA band appear on the IPG strip.