Top Posters
Since Sunday
8
8
7
6
6
6
6
6
6
6
6
5
 What influences DNA replication rate in yeast What influences DNA replication rate in yeastdoes anyone know what type of experiment that i could do that would help me find out wat influences dna replication time in yeast. im reading an article about an experiment that has already taken place earlier in the years:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2860512/but now im asked to make up News Articles and Discussion   Twizzi1227   800   bio_man   8 years ago
 serial dilutions C1 x V1 = C2 x V2 serial dilutions C1 x V1 = C2 x V2Hello,The question is calculate the amount of stock solution you need to make 5 mL of a 0.1mM solution from a 1.0 M stock, using the formula of C1 x V1 = C2 x V2. I know I should first change the 1.0 M to 1000.0 mM and the c stands for concentration and the v stands for volume. Which would be the C1, the V1, C2 and V2.  I always get confused with that part. Would the 5mL Introductory Courses   oldcollegelady   11355   3   bio_man   8 years ago
 dihybrid cross with possible epistasis involved dihybrid cross with possible epistasis involvedUsing this data could you help me figure out if these genes are linked and if they are what’s the map distance between them?  This is a dihybrid cross working with fruit flies.  Parental generation is a sepia eyed male x apterous female.  The F1 are all wild type.  The F2 are as follows:637 +;+   175 +;se63 ap;+17 ap;seOverall F2 Upper-Year Courses   confused_student   4523   2   sarah!   8 years ago
 Shock ShockIdentify two (2) signs of shock in the patients clinical presentation and briefly state the underlying pathophysiological or compensatory mechanism causing each sign?Patient is a 60 yr old male, admitted to hospital with fever and weight loss and has returned from surgery. Vital signs have been stable for 4 hours, but hours later his resps increase 14-18, as does his hea News Articles and Discussion   dahart   854   bio_man   8 years ago
 Renal RenalWhich of the following is a common predisposing factor for pre-reanl acute renal failure post operatively?Multiple Choice:1. Use of prophylactic antibiotics that are nephrotoxix.2. Afferent arteriole constriction causing nephron hypoperfusion.3. Ascending UTI from catheterisation.4. Arterial thrombus in th renal arteries. News Articles and Discussion   dahart   729   bio_man   8 years ago
 Mom's swollen leg with DVT Mom's swollen leg with DVTWell for some time now my mom has had a swollen leg. It is suffereing from DVT. She has been to the doctor a lot but they are just doing checkups and keeping her provided with medication now, which doesn't really do much...My mom is overweight, and the swollen leg makes it even harder for her to get around. It stays swollen about 25% larger than the other leg. Feeling sick?   Ryn1001   5624   7   bio_man   8 years ago
 Human skeleton model Human skeleton modelDoes anyone have suggestions or remarks on certain models, i'm planning on spending around 150\$, i've checked online, but i don't think that i can really trust people selling things on amazon or similar sites, so any idea on which type would be a good one ? News Articles and Discussion   karim89   1969   8   8 years ago
 Bio-man Bio-manWhy are you so awesome and why do you know so much about biology?  I am jealous. Off-Topic Room   Polymorphism   1081   3   bio_man   8 years ago
 Need help with net equation Need help with net equationPb(NO_3)_2 (aq) + 2Kl (aq) -> Pbl_2 (s) + 2KNO_3 (aq)What is correct net equation?If could go step by step really would be helpful, as always thanks for the help, maybe when I get more used to biology, I can start helping out others too! Introductory Courses   gamingwings   1145   2   8 years ago
 Need help with substrate diffenition Need help with substrate diffenitionIn biochemistry, a substrate is a molecule upon which an enzyme acts.Can anyone give me a definition even a non bio major can understand.I think it mean the molecule in which the enzyme affects.... or does it mean the molecule in which the enzyme works with? ERm. So confused. Introductory Courses   gamingwings   889   bio_man   8 years ago
 DPIP (a blue dye), do I blank? It replaces NADPH in experiment . DPIP (a blue dye), do I blank? It replaces NADPH in experiment .DPIP (a blue dye) , do I blank? -It replaces NADPH in experiment .-It should turn blue to colorless when reduced in photsynthesis. -When oxidized it is bluehypothesize Introductory Courses   gamingwings   1802   2   bio_man   8 years ago
 Stomach Problems (cramping / pain / discomfort) Stomach Problems (cramping / pain / discomfort)I've had this problem for about 5 years now and it's really bothering me.  I can't be more than 3 hours late for any meal.  If I am 3 hours late, I feel fine, but as soon as I start eating after missing a meal for 3 hours or more, I start getting intense cramping/pain/discomfort in my mid-lower abdominal area.  This pain only starts after I Feeling sick?   Polymorphism   1347   bio_man   8 years ago
 Religion ReligionIgnorant atheist:-Does not understand the distinction between faith and fact. Faith cannot be disproven by fact.-Foolishly believes that he can convince Christians that god does not exist-Says things like "the bible says ___ but science has proven that _____ is wrong and therefore God does not exist"-Tries to back up his belief in Off-Topic Room   Polymorphism   2847   11   karim89   8 years ago
 Do alleles automatically become more dominant if selection is favoring them? Do alleles automatically become more dominant if selection is favoring them?1.Do alleles automatically become more dominant if selection is favoring them?  Explain.2. Kin selection and reciprocity are two important evolutionary theories.A. What puzzle are they both designed to solve and why is it a puzzle? News Articles and Discussion   michelleahmed   805   duddy   8 years ago
 Lab exercize help Lab exercize helpThis is a laab assignment on what factors affect enzyme activity. and I am having trouble with the post lab. A510 Readings after Adding 2 mL of Glucose Oxidase to Varying Concentrations of GlucoseWe did 30 mg/dL, 15 mg/dL, 7.5 mg/dL, 3.75 mg/dL, 1.875 mg/dL and 937.5 uL/dL.15seconds, 30, 45, 60, 75, 90, 105, and 120 seconds.With the results I made a graph.a s Introductory Courses   oldcollegelady   1083   3   bio_man   8 years ago
 How do Organic Compounds store energy in their arrangement of atoms? How do Organic Compounds store energy in their arrangement of atoms?Is it in their bonds? News Articles and Discussion   NeedsAPbiohelp   1029   bio_man   8 years ago
 Is there such a thing as organic molecules? (read message before answer) Is there such a thing as organic molecules? (read message before answer)A organic molecule obviously consists of carbon. If it contained another substance such as nitrogen, wouldn't that make it a organic compound?I ask this because my AP BIO book and other sources constantly mention organic molecules --but it confuses me greatly when they are I think organic compounds. Is organic molecules a broad, general term that covers organic comp Introductory Courses   NeedsAPbiohelp   1079   2   sarah!   8 years ago
 Photosynthesis; Light Dependent Reactions--Non-Cyclic Electron Flow Photosynthesis; Light Dependent Reactions--Non-Cyclic Electron FlowWhat would happen if the z-protein is mutated?-Explain how would it affect the non-cyclic flow&etc. News Articles and Discussion   Roro   3766   3   bio_man   8 years ago
 mom + mom + dad = human embryo?! mom + mom + dad = human embryo?!British scientists have used cloning to prevent incurable disease by mix-and-matching DNA between fertilized eggs. Some diseases are maternally inherited and are expressed in mitochondria, thus another mother is required. There are currently laws against this practice in Brittan and Dr. Turnbull is estimating a change in as little as 3 years, allowing the first babies to be born usi News Articles and Discussion   PPK   787   sarah!   8 years ago
 Optimization Problems - Calculus Optimization Problems - CalculusHey, here is an excellent workbook for solving optimization calculus problems. File is attached... Free Notes   bio_man   1902   8 years ago
 Hi, New to the Forum! Hi, New to the Forum!Hi! I'm taking biology this coming fall in university... I'm not a science guy, but more of a math / physics guy. Hope you guys can help me out!  News Articles and Discussion   calcguy   2119   5   bio_man   8 years ago
 Osmoregulation Question. Please Help. Osmoregulation Question. Please Help.1) Which of the following statements provides the physiological basis for linking osmoregulation with excretion of nitrogenous wastes.a) Ammonia and urea are released from the breakdown of amino acids in most excretory systemsb)There are specific transport proteins that reabsorb ammonia and urea in most excretory systemsc) Ammonia and urea are small molecules that Introductory Courses   ytarmago   1796   3   bio_man   8 years ago
 Good Marine Biology Universities Good Marine Biology UniversitiesI am thinking about studying marine biology when i go to university. Dose anyone know good universities for marine biology or that specialize in the field.I already have two suggested to me:1) Portsmouth University2) University of Western AustraliaCould anyone add to my short list.Thanks.  Academic Guidance   Xooki3   3754   8   8 years ago
 Kilocalorie per Mole Clarification please Kilocalorie per Mole Clarification pleaseHi there,Ive been having difficulties in trying to understand when someone says "kilocalorie per mole" I know that the term is use to express bond strengths, but let's say someone says a statement "covalent bonds have an energy of roughly 80 kilocalories per mole" Could some one simplify this please. So it takes 80 kilocalories (80,000 calories)& News Articles and Discussion   edalbert   2115   bio_man   8 years ago
 Looking for a Journal Article! Looking for a Journal Article!I need this journal article, but it costs money Could you upload it for me?IL-23 Is Required for Protection against Systemic Infection with Listeria monocytogenesKaren D. Meeks,* Amy N. Sieve,* Jay K. Kolls, Nico Ghilardi, and Rance E. BergThx Referencing Help   mikael   2079   bio_man   8 years ago
 S. pneumonia S. pneumonia1. What feature of the S. pneumonia cell is responsible for its virulence?2. Which type of pneumonia is mainly nosocomial infection? News Articles and Discussion   JOJO   975   bio_man   8 years ago
 Pearson Biology 7th Edition Pearson Biology 7th EditionAnswers are attached 1. greatest likelihood of fossilization in sedimentary rock?I. The species was abundant.II. The species was widespread.III. The species had hard body parts.IV. The species was adapted to desert life.V. The species had a long duration in geologic time.A) III onlyB) III and IVC) I, II, and III Study Resources and Test-Banks   biolove   13870   8 years ago
 Euthanasia underground surfaces in New Zealand Euthanasia underground surfaces in New Zealand This article features a case of illegal euthanasia being performed in New Zealand.One of the issues associated with "back-alley" medical treatment is the potential for them to be performed by inexperienced or unqualified individuals, thereby increasing the chance the recipient is left in a worse state than before. Should we be making euthanasia legal already, t News Articles and Discussion   PPK   913   2   sarah!   8 years ago
 trihybrid cross constructing a map of the genes trihybrid cross constructing a map of the genesOn chromosome #2 of the fruit fly there are three linked genes: vestigial, black, brown or bl-vg-br.  bl is in the middle.  In my parental cross there a vestigial black brown fly is mated with a wild type fly.  All F1 are wild type.  The F2 are the following:1675 +++23 bl vg br176 bl ++13 + vg br57 ++ br52 bl vg +93 + vg Upper-Year Courses   confused_student   2894   2   duddy   8 years ago
 Careers dealing with animals? Careers dealing with animals?Does anyone have any advice on a career dealing with animals that is not a veterenarian? I want to be able to have a career that pays good money that involves animals. I have been looking on the internet but have'nt found one yet. Veterenarian keeps popping up! I am a Biology major and a junior. I'm going to graduate soon and don't want to be one of those people who h Career Guidance   Kelly185891   7110   6   karim89   8 years ago
 Questions on Synthetic Human Insulin. Questions on Synthetic Human Insulin.1. Why can't bacteria produce the final insulin peptide from a single gene for preproinsulin?2. Are the genes for human insulin on the same chromosome or on different chromosomes?3. Insulin binds to insulin receptors, a tyrosine kinase receptor, that in turn stimulates a transporter to increase the uptake of glucose. How is the binding of insulin to this Introductory Courses   LCrunkpool   1925   2   8 years ago
 Rise in emissions = Ocean Acidification Rise in emissions = Ocean Acidification A rise in emitted fossil fuels and carbon dioxide has started to change the chemical composition of the ocean toward an acidic composition. This acidification due to human activity is affecting coral reefs all over the planet, impacting coral and invertebrates.This would affect humans through food supply and may affect birds and other land species.Opinions? Comment News Articles and Discussion   PPK   1025   4   ThePsychic   8 years ago
 Best Statistics Test for Comparing Categorical Data Sets Best Statistics Test for Comparing Categorical Data SetsGreetings,I conducted an indoor plant rooting test involving 9 treatments (including 1 control).  These tests were repeated by using 2 clones (siblings) and replicated across 2 flats with the plant trays (3" x 3")  in random locations.  Each flat contained 18 test trays with the 2 sibling clones each having 9 treatments.  Each tray contained 3 cut News Articles and Discussion   gopat   4165   12   bio_man   8 years ago
 Mongoose Attacking an Asian Cobra Mongoose Attacking an Asian Cobra News Articles and Discussion   duddy   1164   2   bio_man   8 years ago
 Gene therapy cures monkeys of laziness Gene therapy cures monkeys of lazinessGene therapy cures monkeys of lazinessProcrastinating primates can be turned into workaholics, thanks to gene therapy. The discovery, which sheds light on the workings of the brain's reward centre, may further our understanding of mood disorders, such as depression and obsessive-compulsive disorder.Like many huma News Articles and Discussion   bio_man   755   8 years ago
 Losing hair Losing hair so any good remedies for a guy experiencing male-pattern baldness Feeling sick?   biology101   1786   5   duddy   8 years ago
 apoptosis apoptosisIs it necessary for cells to be equipped with apoptosis mechanism? Why? News Articles and Discussion   Brii   1301   3   8 years ago
 Bacteria Bacteria Describe three mechanisms that bacteria can use to survive within a phagocytic cell. News Articles and Discussion   Brii   682   bio_man   8 years ago
 The Hedgehog and the hair follicle: a growing relationship The Hedgehog and the hair follicle: a growing relationshipThe various forms of hair loss (alopecia) constitute an extremely common complaint among both men and women. Although sometimes dismissed as merely cosmetic, these conditions can be psychologically and socially devastating. The desire to regrow hair is at the root of a multi-billion dollar industry worldwide; however, there are few truly effective treatments. Given the recent progre News Articles and Discussion   bio_man   1051   mikael   8 years ago
 Epidermodysplasia verruciformis Epidermodysplasia verruciformis News Articles and Discussion   bio_man   879   mikael   8 years ago
Explore