2
votes
1answer
42 views

Nature Scientific Reports vs. BMC Genomics

I do not know if this question to suitable here or not. I posted it as I think biologists can help me in this question. If not suitable here, then I am sorry for that. I have written paper which I ...
0
votes
1answer
8 views

What controls gut motility?

I have two different papers. One claims that gut motility is reduced by stimulation of the Opioid κ and δ receptors. The receptors are activated by Morphine and certain derivatives, specifically ...
0
votes
1answer
46 views
+100

Does “Garbage Enzyme cleaner” contain cleaning enzymes?

There are many recipes which call for using fruit peel fermentation process to make a concentrated enzyme cleaner solution, some variations call to add bakers yeast. So the question arises that does ...
-1
votes
1answer
12 views

How can Reflex asystolic syncope lead to Asymptomatic Asystole in Heart?

Ethiology meeting a doctor or injection fear It can course loss of consciousness but what about heart? Can it lead to asystole to the heart before the brain? Eg through hypotension as described ...
0
votes
0answers
29 views

What is the effective line detected by ML II channel in ECG?

I want to find the approximate effective path/line on the heart that ML II channel detects on the heart. The normal ECG angle is 59 angle. ML II channel, which is a combination of two bipolar leads, ...
0
votes
2answers
20 views

What is called the condition where no pacemaker cells are active in heart for short-time?

Assume that the heart is beating but no pacemaker cells is working for at least 15 seconds. This would be very long compensatory pause if extrasystole started it. There may be some low frequent ...
6
votes
1answer
63 views

Providing small molecules to cells on a filter plate

Lets imagine that I have mammalian cells that I've immobilized on a filter. Now I want to keep providing small molecules to these immobilized cells without resolubilizing the cells. The caveat is ...
0
votes
0answers
14 views

Fundus ventriculi

Here is a microscopic image of fundus ventriculi Are these cells secreting something into these round middles? If so, what do they secrete? If not, what are these cells?
0
votes
0answers
6 views

Gastroenteritis virus causing mutation of the Enterochromaffin cells

I am working on the solution to a worldwide problem: IBS or chronic diarrhea following a viral gastroenteritis infection. I think I have an answer. The only missing piece to the puzzle I found in a ...
1
vote
0answers
15 views

How fast can a human run?

I'm a runner (cross country) and I'm always amazed at how fast Olympic sprinters are. There's a lot of hype about those in the 100-meter dash being the fastest in the world, and we're constantly ...
-1
votes
0answers
11 views

How can periodic asystole of heart cause cataplaxy with partial asystolic syncope?

In brain, it can be called reflex asystolic syncope - symptom unconsciousness. In heart, just asystole but here consciousness. If these occur at the same time but with brain partially (since ...
0
votes
0answers
27 views

DNA and aminoacid sequence [on hold]

5’ ATG TCA ACT CGG GCA ACA CAT TGT CTG TAT GAC GAA TAA TTA ACG 3’ TAC AGT TGA GCC CGT TGT GTA ACA GAC ATA CTG CTT ATT AAT TGC Q1: What will be the resulting ...
1
vote
1answer
24 views

Please help me to identify this red worm

I found bunch of red worms coming out of sink. It is rather unusual to find an overwhelmingly large number of worms. It doesn't seem like earthworm or horsehair worm. I don't know much about the ...
2
votes
3answers
140 views

Hardy Weinberg Equilibrium after 5 Generations

1 There is a population not at HWE where red eye = $a^+$ (dominant) and white eyes = $a^-$. if $a^+/a^+ = 0.6$ $a^-/a^+ = 0.1$ $a^-/a^- = 0.3$ what are the frequencies of the $a^+$ and $a^-$ ...
1
vote
2answers
36 views

How did aquatic dinosaurs go extinct?

Dominant theory is that 'normal' dinosaurs went extinct from ether super volcano or meteor impact or combination of both. However there were aquatic dinosaurs that are not present at this day. Was it ...
0
votes
1answer
10 views

Does re polarization of muscle fibers mean that the muscle bundle is relaxed?

If I flex my bicep and continue to contract it does it mean that the muscle cells are in depolarizing state and not re polarizing?
1
vote
1answer
35 views

What are the risks of elevating the legs too regularly and when tired?

I started to to think the pathophysiology of elevating legs high next to the wall too often and when you are tired. I think possible manifestations some damage to valves of the veins (No!) because ...
1
vote
0answers
6 views

How to find mirna binding site's on a specific gene?

I am trying to find mirna's that bind to 3'UTR of a specific gene. What is the best way of doing that (that is; with a good scoring analysis that is most commonly used by researchers in this area)? I ...
7
votes
1answer
44 views

Can a human cell live indefinetely in a controlled environment?

How long can a human cell live in a controlled environment, given all necessary nutrients, temperatures, mechanisms for waste removal, and other requirements are provided for? Put differently: Can a ...
0
votes
1answer
14 views

Among xerophyte plants, which one grow faster and consume water the least?

In an effort to select for the most suitable plants to possibly colonise desert and stop its expansion, what would be the xerophyte plants that grow the faster and expand on surface, while using the ...
7
votes
1answer
47 views

Fate of erythrocytes after splenectomy

The spleen is considered a graveyard for red blood cells. So in case of Splenectomy (complete surgical removal of the spleen), what would be the fate of red blood cells? Would this cause Polycythemia? ...
0
votes
1answer
21 views

Are added yogurt cultures harmful to the gut?

I have read somewhere that the live culture added to yogurt acting as "healthy" gut bacteria are actually synthetic and harmful. Any truth to this? If so, what are some alternatives to getting good ...
2
votes
1answer
15 views

How is Microenvironment strictly defined?

I started to think this definition of Wikipedia: Microenvironment (biology), a small or relatively small usually distinctly specialized and effectively isolated biophysical environment (as of ...
2
votes
0answers
21 views

Does trypsin strip flask coating?

Mammalian cell/tissue cultures sometimes require flasks coated with proteins. My uneducated guess is that these proteins mimic the ECM, perhaps the basal lamina, so finicky contact-dependent cells can ...
4
votes
4answers
699 views

Do male animals visually perceive females as more/less attractive?

If we somehow remove pheromones, do animals experience a phenomenon similar to human "visual beauty" when looking at members of the opposite sex? For example, given a set of 20 female ducks observed ...
7
votes
1answer
746 views

What about a bat's immune system protects them from Ebola?

Current evidence indicates that fruit bats are a reservoir host for Ebola. Has any research established what is different about their cell biology or immune system that reduces virulence for them? ...
4
votes
1answer
176 views

How is it possible to even hope for an ebola epidemic of this current size to remain contained to a relatively small part of Africa?

As of 2014-09-14 at least 5347 cases of ebola have been identitied. Some estimates are much higher. While experts are sounding the alarm to try to get sufficient resources to contain the outbreak, ...
4
votes
1answer
88 views

Is ebola non-contagious until symptoms appear? Why?

There's been a lot of talk lately about the man who recently came down with ebola in Dallas, Texas. While I live elsewhere, I keep hearing quotes from CDC and state officials that ebola is not ...
8
votes
1answer
1k views

To what extent is Ebola airborne? (aerosols)

Recently, CIDRAP at the University of Minnesota announced that Ebola may be more transmissible through aerosols than previously thought. I lack the familiarity with the field to critically evaluate ...
10
votes
1answer
1k views

How long does the Ebola virus remain infectious on contaminated items or surfaces?

I'm sure there will be variation depending on what the contaminated item or surface is made of - linens, I could imagine, would remain dangerous for longer than a door-knob. But if the items are not ...
7
votes
1answer
1k views

How does the ebola virus attack?

How does the ebola virus attack and how do some people get away with it? Normally any virus would attack a cell with some kind of receptors and some kind of lock and key mechanism entering the cell ...
0
votes
0answers
36 views

Installing MRBAYES [on hold]

I'm trying to get MRBAYES 3.2 to work on my linux computer (CentOs 6.4). I'm following the directions to compile the program from source from CompileInstructions.txt. It tells me to do the ...
1
vote
2answers
58 views

Is the quality of sleep dependent on sleep duration?

I've been facing this lately, where I will wake up in the middle of the night after sleeping for perhaps 2-3 hours and be wide awake, but when I go back to sleep, I wake up more tired than before. ...
4
votes
1answer
54 views

Are all functions of a human cell known? [on hold]

Please bear with me as I'm intruding into your world from a computer science background. In programming, once you have created a program, you know all functions of that program. Thus, 100% knowledge ...
3
votes
1answer
24 views

What does the root “phyllum” mean used botanical binomial nomenclature

I often encounter the root "phyllum" in bionomial names in botany, but I've had trouble finding an actual definition for this root in any Latin dictionary outside of its taxonomic meaning. From ...
5
votes
1answer
58 views

Can the negative afterimage appear only if there is light or is it possible in darkness?

Reading the following paragraph: After staring at the red and blue shamrock, you saw a green and yellow afterimage. Opponent-process theory proposes that as you stared at the red and blue ...
2
votes
1answer
24 views

Is viral protein expression important for peptide vaccine?

I would like to know if proteins expressed in higher quantities, such as DNA polymerase, would be better vaccine candidates for a T-cell based vaccine. Thanks, Bernardo
2
votes
1answer
21 views

Book recommended for neurobiology

I am looking for a good explanatory book concerning Neurobiology. I am interested on how the brain works but prior to this I believe that I have to start learning things about the biology of neurons. ...
1
vote
2answers
54 views

What kind of technology is required for plant seed DNA printing? [on hold]

I'm a programmer so I have little knowledge in the field of biology. However I have an interest in plants, GMOs and DNA (in terms of programming). So, I want to know what kind of technology is ...
0
votes
0answers
15 views

Can textiles with visible mold removed via vinegar and bleach still pose a health threat for babies? [on hold]

Our pram caught some mold after we accidentally forgot it in the rain: Green-ish dots all over. I'm rather nervous about the health risks of mold (asthma etc.), so I tried to remove it as good as ...
0
votes
0answers
21 views

Too much light in electrophoretic gel photo

The electrophoretic gel's photo shows too much light. Is it because the sample is not loaded properly? I can't see any gel lanes in my PCR samples or in the marker itself when photographing them.
3
votes
1answer
71 views

Ideal lab glassware cleaner for molecular biologist

I'm using Alconox powder detergent to clean my laboratory glassware, the powder is a pain to store near the sink and to use. Would like to make a concentrated liquid to use in its stead. I have ...
1
vote
1answer
10 views

What enables azacitidine to incorporate into both DNA and RNA?

I did a mini-project on the drug azacitidine for my pharmacology class, and I learned that azacitidine has the ability to incorporate into both DNA and RNA. I think this is really unique because a ...
1
vote
0answers
33 views

What houseplant is this? [on hold]

What houseplant is this on the photo? The plant is living in Russia. What conditions are the best for it? What is the best place in the room? How often should I water it?
2
votes
1answer
23 views

Concentration of caffeine in physiologically relevant setting

Caffeine is known to overcome G2/M (and possibly other types of) cell cycle arrest through its effects on DNA repair machinery and is used as a positive control in studies of cell cycle arrest. In ...
5
votes
2answers
47 views

What is the name of this plant with many purple blooms with orange inner parts?

I have photographed the following plant in Pittsburgh, PA. It has many blooms and every bloom is very small (about 5mm diameter), purple on the outer and orange in the inner. You can see it here: ...
0
votes
0answers
7 views

Do all species have asymmetric female meiosis?

In all the examples I can think of, (mostly vertebrate), female meiosis, or oogenesis, only haploid gamete is produced while the other cell divisions result in polar bodies. While male meiosis results ...
1
vote
1answer
57 views

How prominent is the gene-centric view of evolution among professional researchers?

Richard Dawkins famously advocated a gene-centric (as opposed to organism-centric) viewpoint on natural selection, most notably in The Extended Phenotype. However, I have also heard "on the grapevine" ...
0
votes
1answer
26 views

Is the Hypothalamus part of the Central Nervous System or Endocrine System

Sorry for a certainly naive question. Some references (for example https://faculty.washington.edu/chudler/nsdivide.html) seem to to indicate that the hypothalamus is part of the Central Nervous ...
1
vote
0answers
41 views

Is the attached digital camera on the top have the same magnification than visible in eyepiece? [on hold]

There are some microscopes with digital camera system attached to the top. But does it include or bypass eyepiece magnification? E.g. 40x objective lens and 10x eyepiece making the total ...

15 30 50 per page