0
votes
0answers
2 views
Experimental evidence for the selfish gene vs. the selfish individual
In the Selfish Gene, Dawkins makes the argument that a better view of evolution (i.e. more in accordance with experiment) is obtained if you view the basic unit of evolution to be the gene rather ...
1
vote
1answer
18 views
Do male marsupials have a pouch?
Do male marsupials have a pouch, or is it a female organ only (like the womb)?
1
vote
0answers
18 views
Reason behind formation of different shapes of cell
I have always wondered how cells are modified to give them a specific shape. On what specific part of a cell does gene regulation act for giving the shape ?
1
vote
1answer
25 views
In vitro enzyme production
I need to express a protein in vitro but I don't know where to start. I will likely do a T7 transcription protocol but for translation I am not sure what to do. Are there any good kits?
0
votes
1answer
21 views
Amino acid characteristics that determine their chemical properties?
What chemical aspect of amino acids results in their having different properties such that the chemical and physical properties of polypeptides vary with both amino acid content and amino acid order?
...
0
votes
0answers
12 views
Hardy-Weinberg applied to three alleles and stimation of allele frequencies
I have this equation:
Corresponds to HW in equilibria with three alleles:
$(p+q+r)^2=1$
Expanding the square results:
$p^2+2pq+r^2+2pr+q^2+2qr = 1$
I need to separate homozygous and ...
0
votes
0answers
11 views
Do cockroaches eat their shells after moulting?
I recently witnessed a cockroach eat its shell after it moulted. Do cockroaches always do this?
1
vote
1answer
24 views
How do pet gecko lizards pose a health risk?
Does having gecko lizards living in your house pose any health risk?
-1
votes
0answers
32 views
Is it possible to gain mutant powers through a genetically modified virus? [closed]
Is it possible to gain mutant powers through a genetically modified virus?
i want wolverines healing powers - biologists you're on!
0
votes
1answer
24 views
Ill effects of urea and NH3 on metabolism
What exactly does urea do that harms our body ? Does it interfere with our cellular processes or disturbs the colloidal onchotic pressure of our blood ?
I have heard that NH3 damages the brain . What ...
0
votes
1answer
19 views
First genomic survey of human skin fungal diversity
"The researchers found that a single type of fungus, belonging to the genus Malassezia, is predominant on the head and trunk. Hands, which harbor a great diversity of bacteria, are home for relatively ...
0
votes
0answers
16 views
How to evaluate 1st and 2nd order reactions, with rate constants and fluxes? [closed]
I want to implement differential equations in C# from Open Cell cellml file. The mathematical model is described in the following link [http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1367306/][1]. I have ...
0
votes
0answers
15 views
best known indexing method / transformation to coordinates for gene sequences
What would be the best known method to transform a gene or proteine sequence to some coordinate space (so $t(G)$ is the transformed sequence) complying to following rules:
similar sequences ...
2
votes
1answer
30 views
What is this marmot-like animal (Tigray, Ethiopia)?
I was searching what are the animals I frequently saw in the north of Ethiopia. I took some bad quality pictures.
For me it looked like a large squirrel, local people called it a rat, and on the ...
-1
votes
0answers
19 views
Is there any problem in the debian package of BLAST executables downloaded from UBUNTU software centre? [closed]
I am using standalone BLAST in my two computer. The executables are installed differently in these two machines. In one case blast2 package has been installed from UBUNTU software centre which is a ...
2
votes
1answer
28 views
What does “rapamycin-sensitive oncogenic transformation” mean?
Can someone explain exactly what "rapamycin-sensitive oncogenic transformation" is? I get that it's a drug that suppresses the immune system but what does it have to do with oncogenic transformation?
...
3
votes
1answer
39 views
Is Active Transport Required For Life?
Is active transport required for all living cells to function?
I was under the impression that if a cell doesn't have active transport, it either would lose molecules through the membrane and not be ...
3
votes
2answers
26 views
Is there any source for raw data of SNP genotype frequency?
On sites like SNPedia, some pages contain the frequency of the SNP in question in different populations, based on published research. I'm trying to write a script that takes 23andme data and compares ...
2
votes
0answers
10 views
Reflexes & Pathologies including the Vagus Nerve
I only know the vasovagal reflex. I would really appreciate if someone could inform me about the other ones.
About the pathologies, I already know the effects of direct nerve damage. I am talking ...
2
votes
2answers
32 views
How does the immune system distinguish own and foreign antibodies?
Therapeutic antibodies, for example Rituximab which recognises CD20 on B lymphoma cells, can cause adverse effects (e.g. http://www.ncbi.nlm.nih.gov/pubmed/19399690)
One reason behind these adverse ...
-1
votes
0answers
19 views
Switching over to syntetic biology [closed]
I have a bachelors in computers science and would like to switch over synthetic biology.
How do i proceed
Is it advisable to do so
How can i get a (another) bachelors degree or a masters degree ...
0
votes
1answer
26 views
copper spiral birth control not toxic?
I Always thought that copper was toxic to the human body.
So how can it be safe to place a copper object (birth control spiral) into a uterus for a duration of 5 years?
0
votes
1answer
19 views
Excretion and metabolic waste?
I know there is a difference between digestive and metabolic waste, but which one is called excretion? And what's the other one called? Thanks!
0
votes
1answer
36 views
What's food mode?
I've been watching a The Crocodile Hunter episode about Komodo dragons, and Steve Irwing kept speaking about the animals being in "food mode", in which they apparently change their behavior to one of ...
0
votes
0answers
12 views
cell uptake prediction
I'm generating random molecules I would like to know if they are able to pass through the cell membrane. Are there any ways (preferably computational) to predict cellular uptake of an organic molecule ...
1
vote
1answer
26 views
Mapping a mutation to known SNP, 3' UTR, miR
I've parsed out a very large TCGA cancer ssm (single mutation file) file to give me the essential information.
The ssm is in the following format:
...
1
vote
2answers
24 views
How did the activities of protocells become inheritable?
I have learned that first a protocell came to exist and its characteristics came to be passed on by genetic material. So how come genes for all the activities come to incorporate into genetic ...
4
votes
1answer
33 views
Cat purring: What are some possible underlying mechanisms behind purring and bone remodeling and formation?
http://www.scientificamerican.com/article.cfm?id=why-do-cats-purr
The article above says that cats purr mostly when they're wounded or under duress. They hypothesis that cats purring leads to ...
0
votes
0answers
35 views
DIY food intolerance testing ELISA
I recently purchased an expensive food allergy kit which reportedly tested 59 types of food, what I found was actually consistent with my experiences despite health experts saying they are not ...
0
votes
0answers
28 views
Is there any interest to searching for intelligent messages within the DNA coding sections already responsible for coding RNA to make proteins? [duplicate]
Is there any major flaws in the below reasoning that would not make it worthwhile to find a potential intelligent message inside our DNA? I'm thinking modern science would shy away from this endevour ...
1
vote
0answers
21 views
What mammalian cell lines are easiest to grow and transfect?
I'm working with HEK293 cells, which are very easy to transfect. Does anyone have other suggestions for cell lines with very high transfection efficiency? Ideally the chromosomes would also be diploid ...
0
votes
0answers
25 views
Reverse complement of reconstruction model for assembling reads
One way to assemble fragments produced by DNA sequencing (often called reads) is to seek for the shortest common superstring that contains all the reads of a given set of reads. One model for this ...
2
votes
1answer
33 views
Why does the sweat of children not smell like adults?
My kids sweat plenty in this hot heat, but they don't smell afterward. I on the other hand need all kinds of deodorant. Why doesn't kid sweat smell?
0
votes
1answer
16 views
Transplantation of stem cells
During the autologous transplantation of stems cells from bone marrow to produce new blood cells why all the other stem cells other than the one obtained are destroyed?
3
votes
1answer
58 views
Can proteins move outside cells?
I am trying to learn about basic cell biology, and have what is probably an extremely simple question.
So this is how I understand it so far:
Proteins are made from amino acids. This process is ...
0
votes
1answer
20 views
Immunity during pregnancy
I have learnt that our immune system distinguishes self from non-self by using MHC. So a mother during pregnancy should also develop antibodies against the fetus as it is also a genetically different ...
0
votes
0answers
16 views
Ideas for mobile apps focusing on community health and preventative care? [closed]
I am a software developer and would like to make some free apps to assist people with their healthcare, especially those who are underserved or typically are not involved in their healthcare. And I ...
0
votes
0answers
34 views
Specifically What Protein Folding Calculations does Folding@Home do? [closed]
The Folding@Home project claims to solve protein folding problem on participant's desktops when they're not in use. Could anyone tell me what the calculations are that are running through Folding@Home ...
0
votes
3answers
40 views
Diffusion across cell membranes
I got this question and don't really understand the difference between the answers.
Diffusion is (in cell membrane):
a) passive by nature, no metabolic energy is needed
b) driven process by ...
0
votes
0answers
13 views
Is schoons hardshell muskmelon a hybrid?
Would schoons hardshell muskmelon be considered a hybrid as I have read it was a cross between a Bender's Surprise and a Honey Rock.
1
vote
2answers
52 views
+50
What medical and commercial proteins are made using genetically modified animals?
Recombinant technologies in micro-organisms being used to produce commercial and medically useful proteins like insulin are fairly common.
However some proteins are still produced commercially in ...
1
vote
0answers
17 views
Hippocampal regulation of hypothalamus
What is the difference between CA1-CA4 hippocampal subfields and dentate gyrus (DG) in negative regulation of hypothalamus? I`ve found only evidence that GR expression is more in CA1-2 and DG, while ...
0
votes
0answers
13 views
Endophytic Xylariaceae: diversity and taxonomy inferred from rDNA sequence analyses
"Thailand is considered as one of the areas containing a high percentage of unknown taxa of Xylariaceae (Rogers 2000). In Thailand, several studies on endophytic fungi have been documented, namely, ...
0
votes
0answers
34 views
By what mechanism does taking a shower wake up and energise?
My personal experience is that a warm or hot shower can make me feel good, alert and energised. I've heard others having similar experiences, some mentioning cold shower as a good method to wake up.
...
-2
votes
0answers
26 views
International standard to prepare an International journal [closed]
Any of you could give the link or reference regarding International standard to prepare an International journal on microbiology field?
0
votes
1answer
54 views
TCGA data, and bioinformatics design questions for SNP/ mirna analysis
It's my first time posting to this forum but was looking for some help on the data aspects of this project.
My tools of choice would be in python/R .
Goal: I'm looking to create a disease specific ...
2
votes
0answers
21 views
How to use mechanical microstrainer to extract tissue proteins from human?
Background:
There are many methods to extract proteins form human tissues out there. The majority of them use an extraction buffer containing variable concentrations of detergents and protease ...
0
votes
0answers
30 views
Wheat anthracnose outbreaks caused by Colletotrichum cereale in the USA
"Wheat anthracnose outbreaks caused by C. cereale were problematic during the 1940s in the USA, but presently do not limit production of this crop, despite the fact that the fungus still inhabits ...
0
votes
0answers
19 views
Is it “extreme” or “large” diversity for endophytic microorganism subject? [migrated]
Do I need to substitute the word extreme to large in this text?
Endophytic fungi are molds that are found in the healthy plant tissues. Endophytic fungi is mold that exists in the plant tissue ...
0
votes
2answers
53 views
What kind of arthropod/animal is this?
Can anyone identify this strange creature? I live in a very urban part of Montreal, Canada. It wasn't moving (seemed dead) and although the image is huge, it wasn't as big as it seems (a couple of ...
