Biology

What are the differences and similarities, what do they do and their purposes ?

i'm talking about incest between close relatives, eg, father/daughter, mother/son, brother/sister if it doesn't necessarily lead to birth defects, then what is the probability of it leading to defects? i don't have a degree or any other qualification in biology so if you can answer this can you put it in simple language please. thanks

OK I have just been thrown this word in one of the books I am reading, but with no real attempt made to explain it's meaning. But what in the context of chemotaxis is a "chemoeffector"? Does anyone know?

I heard recently on the BBC about a period of time after trees but before fungi were able to break down wood. Apparently this meant that a lot of carbon ended up stored in the wood of dead trees that wouldn't get broken down, insects became very big during this period too due to the high carbon atmosphere. Does this mean that there were mountains of wood laying around, trees would die and just lay there? If so is this self balencing due to eventually no light being able to get to the soil below?

OK the title is a little misleading as I suspect that a Mega Dalton is simply a way of counting the overall size of something, when you don't know what all the constituent parts are? Is this correct? I mean looking it up on Wikipedia it says it says one Dalton is equivalent to the mass of one proton. Which is fair enough. So if a protein was one million Daltons in size (or one mega Dalton), that would just mean that it contains overall one million protons? (These are questions BTW). However the question is if this is correct, why is the Dalton used over any other measure in biology, how is it calculated and how is it denoted? Thanks!

While searching for articles to reference in my discussion in my lab report, I have discovered the magic of using keywords like "photoresponses." Is there an archive where I can search for these words and their meanings like a glossary? P.S. Anyone know the word for tending to flee the center? I would use centrifugal tendencies, but that seems to be more physics related.

so i know that red blood cells carry oxygen in hemoglobin, and the red blood cells are delivered to cells, but does the red blood cell derectly transfer oxygen to the cell? or does it diffuse to plasma first? can someone explain what technically happens to get oxygen from red blood cells into the cells of thte body?

Hello, I am student currently studying soil sciences in Pakistan. I need a bit idea about conducting any research study. As I am about to graduate within 2 to 3 months and I have to apply for Masters scholarship abroad, So All I needed to publish atleast one research paper in any national/international publication to polish my Resume for the scholarship. So I want a little idea about is there any research related to soil science which I can complete within 1 to 2 months to write my research paper??? Positive help and suggestion will be appreciated Thaniks

hi guys! i am doing phage titrering but have difficulty in chosen the right values. please give me some ideas. thanks in advance! here is what we did: dilute phages 5X with dilution buffer. add 1ul of the diluted phage to 200ul of the XL1-Blue overnight culture. Add 2ml melted top agar. Quickly pour onto a plate. the day after count pfu/ml. pfu/ml: (number of plaque*dilution factor*10^3ul/ml )/ul of diluted phage plated. my problem is: what is the dilution factor? is that factor 5 or should i also take 200ul of the XL1-Blue cells and 2ml melted top agar in consideration? (practically it seemed like the phages is diluted more than 5X.) what is the "…

if you can't see the charts, you can see them in my blog. Almost all husbands are complaining that their wives have the low sexual drive and never initiate sex with them, and of course they can't get enough satisfactory from their wives. The low sex drive in women becomes the main excuse for men's cheating, and all women are also stuck by this problem. Many explanations have been given to this problem. Some experts say women were born with low sex drive, and some say women don't deserve the high sex desire, because the value of women existence is reproduction, and some say woman's desire for sex is based on a complex interaction of many components affectin…

if you can't see the charts, please see my blog. Recently, a friend of mine from Portugal gave me some advice about my new theory of female orgasm, although what he said are more platitude and useless, but he indeed gave me some clues about female sexual response model. I check on the internet for all about female sexual response models, and there are three in all. 1, Linear Model by Masters and Johnson in 1966 2, Circular Model by Beverly Whipple and Brash-McGreer in 1997 3, Non-linear Model by Basson R I analyze advantages and disadvantages of these three models one by one and finally construct my own female sexual response model. Excuse my rudene…

Hi folks, I wasn't sure quite where to put this as it spans computer science and biology, but I'll leave it here for now. I'm hoping to be doing some work with STEM this summer, I'm a computer scientist so my focus will be mainly around that but this project is a good way of weaving several things together I think. I was watching a short film on evolution the other day and to cut a long story short I thought it would be nice to write some software that people could interact with and see evolution (or rather its principles) in action. This should provide an engaging overlap between maths, biology, comp sci and general reasoning. The idea is to have a fully…

Is it true that drinking your own urine is healthy? My friend says that there are many health benefits from doing so. initially i didn't believe it but after surfing the net a little, i 've found a lot of sites supporting this idea. so, what's the general consensus among SFN?

plz give me any links of articles related to it...

Saccharomyces cerevisiae is a well known eukaryote. It is also sometimes referred to as "Baker's yeast" or "Brewer's yeast". Saccharomyces boulardii (the best link is wikipedia) is a "natural" or "wild" yeast. It is not generally cultivated by humans. The two are essentially the same to some observers. Clustering of Saccharomyces boulardii strains within the species S. cerevisiae using molecular typing techniques This is a preliminary genetic test of various yeast strains in which the protein codes are broken apart and sorted by size. Some are boulardii, some are not. For reference, #2 is a boulardii strain. The conclusion one might draw (I won't sp…

Can you please help me with this. Can you read this paper and tell me what you think about it? maybe some criticisms? thank you! Link: https://stuiterproxy.kuleuven.be/doi/full/10.1021/,DanaInfo=pubs.acs.org+ct100579w

....separates proteins by size. But, technically does the charge affect the separation AT ALL or is negligible? I don't think anything should be negligible in science do you lol?

Which has a higher mutation rate prokaryotes or eukaryotes? This was a question on my exam, i wrote prokaryotes and it was wrong. I was thinking along the lines that prokaryotes have less DNA repairing mechanisms and they divide at a much faster rate than eukaryotes. Can someone please explain to me RIGHT answer to this question, because I'm pretty sure that I am right, or why I am wrong. THanks.

Can someone help me out with this. Im trying to convert the follwing buffer...4 X Tris, to be expressed as a molarity. This is all the information i have, and is this possible?

My group had recently done a choice experiment on Artemia with respect to preference of light intensity (three zones: one covered with black plastic, one covered with a fabric that's weaved so some light gets through, and one with no barrier). We performed two trials and the data we collected allowed us to both reject and fail to reject the null hypothesis using the chi-square test and the table of critical chi-square values (separately). So does that mean that there is some significance? No significance?

Can someone explain exactly how PCR is used to diagnose the presence of a microbial infection. Are primers which are specific for certain microbial genes designed, and if that microbe is present, then that gene will be amplified??

1) Cytokinesis begins in A) Prophase B) Metaphase C) Anaphase D) Telophase I think it's late anaphase not sure though 2) Which phase of mitosis is the longest? Well, I remember my teacher saying it was metaphase, but textbook and other people on yahoo answers say its prophase, so i just didn't know who to go with?

Hi people<br style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px; background-color: rgb(245, 245, 255); "><br style="font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13px; background-color: rgb(245, 245, 255); ">Im a 3rd year biomedical student currently writing my dissertation. I am confused about how to correctly write the composition of my stacking/separating gel. My supervisor told me all of the components e.g. Tris must be expressed as concentrations and not volumes, but im having trouble working this out.<br style="font-family: verdana, geneva, lucid…

I heard that in america(I think it was) that they have developed nano robots that crush cancer cells and that they have tested it on pigs and mice with great results and belive they can cure different diseases. This would be revulsion in medical science and biology but my question is if you know any risk factor with this ( I cant really think of any) and discussion topic is would you accept to have them in your body curing you from diffrent diseases??. Also dose anyone have a link were they explain more in detail about this? I for one would gladly take them to keep heathy Note"I put this under Biology but it could be under engineering …

Basic details: It is an innovative project, there are no limitations.We can do whatever we want.In this, we will work alone.No professor will be there with us.We have to just inform them about project.If they like, they will improvise it.We can ask for help if needed.The main idea of this project is to develop creative thinking in students.Our professor doesn't like the idea of testing or demonstrating something.eg - affect of some drug etc...because, he says that it is of no use.We should do something which will give some new useful result. Some of my seniors projects: -preparation of agar alternative using natural sources. -preparation of petriplate altern…