5
votes
1answer
81 views

Could this Francobelgian comic book woman really have these 4 diseases at the same time?

I'm doing an archive binge of a paper comic "The Kiekeboes". One of the characters is an elderly woman currently at the doctor, and she says the has the following illnesses: Erythema Exsudativum ...
2
votes
0answers
35 views

Plotting metabolic networks?

I need to draw a map of the core metabolism of E.coli. Associated with each reaction in the map I have a number that indicates the flux through this reaction. I want the map to reflect these fluxes ...
2
votes
2answers
18 views

Question about flavodiiron protein

I came across an article about flavodiiron proteins that are responsible for reducing ${\rm O}_2$ to ${\rm H}_2{\rm O}$ thereby protecting the anaerobic prokaryotes and some eukaryotes from oxidative ...
2
votes
2answers
59 views

Manufacturing of Bio Molecules [closed]

Can we Manufacture bio molecules say e.g. the simplest Sugar, C12,H22,O11 the way we do with any other mechanical component. So, we know all about the Structure and arrangement of Atoms in Sugar - so ...
2
votes
1answer
26 views

How many water molecules will be generated when single nucleotides are used to make this RNA: 5’-UUAACCGUCAG-3’?

Based on what we learned on condensation reactions, how many water molecules will be generated when single nucleotides are used to make this RNA: 5’-UUAACCGUCAG-3’ I had an online biology quiz with ...
3
votes
1answer
28 views

Question about microaerophilic parasite tolerance for oxygen

Does anyone know what is the maximal concentration of oxygen that can be tolerated by the parasite Giardia intestinalis?
2
votes
1answer
32 views

Kinesiology Tape Benefits

Recently, kinesiology tape has become popular, especially in CrossFit. I have also noted its' use in the NFL, and I want to say Tennis as well. What beneficial effects does this tape offer our bodies ...
3
votes
1answer
78 views

Why do baby mammals tend to play?

Why do babies of any mammal tend to play ? From humans to small dog pups, cubs of a lion, baby bears, etc. *I am not sure if the tag I chose is correct or not. Please correct me if I'm wrong.
2
votes
1answer
93 views

Which process is needed to complete male reproductive development?

In order to properly complete male reproductive development: ...
-7
votes
1answer
61 views

Evolution 15 + 15 [closed]

If I flap my hands for say, about 1hr everyday, and I teach my future children to repeat this and so on, theoretically (at least), how many generations would it take for my grand [sons ...] to be ...
1
vote
1answer
60 views

Did spiders respond to light for building webs before artificial light was invented?

I have noticed that during summer, beautiful spider colonies grow wherever a strong light is: I'm wonder whether spiders evolved to seek naturally lighted areas where they build nests (before ...
3
votes
1answer
23 views

Vitamins located closely under the peel?

I came across an old saying (I would even call it a myth) that vitamins are concentrated under (or close under) the peel of apples or potatoes and other fruit. This implies that they are more ...
6
votes
1answer
38 views

Cross-integration of puma subspecies populations

A major concern of conservationists in south Florida is the population of native Pumas, the Florida Panther. Until recently, it was thought that the Pumas were a genetically distinct subspecies, ...
7
votes
2answers
84 views

RNA-Seq library construction challenges: the biases of RNA fragmentation vs cDNA fragmentation

I recently watched a presentation on RNA-seq that covered some of the choices one can make along the way, and I didn't fully understand one of the choices in particular. Near the beginning of the ...
4
votes
1answer
76 views

How do animals lose heat?

I remember being told as a child that dogs stick their tongue out to stay cool, because they can't sweat like us. This made sense to me. But only a couple of days ago I suddenly thought: What about ...
9
votes
3answers
580 views

The evolutionary process in bird wings, especially with regard to winglets

In this answer on aviation.SE a comparison is made between the shapes of airplanes wings and the shapes of birds wings. It concludes with the following remark: After all, no bird has winglets. Not ...
2
votes
1answer
14 views

Effect of extremely hard water on marine life?

When researching water quality standards, I found that a minimum and maximum was set for water hardness. Several sources also state that water can in fact be too hard. The question is how does hard ...
3
votes
1answer
49 views

Help identify this awesome climbing plant with velcro like stem

I got this plant sprouting in my window box this spring. Starting from a single seed, it has grown into an impressive array of branching climbing vines, reaching 6 feet tall. The stem turned red as it ...
3
votes
2answers
80 views

Name of This Black and White Dove

I spotted this dove in a park. It was foraging among Rock Doves, Seagulls, Ibises and a few others. It appears similar to Pied Rock Doves, but I am not certain if this is correct. Any idea what ...
0
votes
0answers
18 views

What Type Of Goggles Offer Better Protection For Airborne Pathogens

For airborne pathogens, be it Chickenpox, Influenza, Measles, Smallpox and Tuberculosis, which offers better protection against aerosolized particulates, splashes, etc? Non-vented, Vented (regular), ...
4
votes
1answer
48 views

Oxidation means inflamation?

All right, I was reading article on nutrition, that focussed on content analysis of pastry-like food product for kids. I have to say that I am not sure this article would pass the imaginary smell ...
2
votes
2answers
44 views

Why is gastric lavage considered to be helpful only if a patient comes to a hospital within 1 hour of a toxic ingestion?

Why is gastric lavage considered to be helpful only if a patient comes to a hospital within 1 hour of a toxic ingestion? How severe would the effects be if a patient came to the hospital after the ...
2
votes
0answers
39 views

How does temperature influence the rate of protein degradation?

For computer modeling purposes, I am looking for some referenced quantitative measurements of the effect(s) of temperature on biochemical reactions. Question In particular, my question is: How does ...
3
votes
1answer
161 views

Why do I breathe out of BOTH nostrils?

After reading the question why do I only breathe out of one nostril I realized that breathing out of both isn't common. I have always breathed out of both, and when I get a stuffy nose, or a runny ...
2
votes
1answer
57 views

What is the point of DNA sequencing?

This is a very very basic question. I've looked at methods such as chromosome sequencing and shotgun sequencing. Wikipedia says that: ...
1
vote
0answers
25 views

Highest Pressure Human Body Can Survive In?

One design for underwater human inhabited environments is to have equal pressure between the surrounding water and the submerged habitat, thus allowing a section of the floor to be open to the water ...
3
votes
1answer
32 views

Why do we use DNA sequencing methods such as shotgun?

I am learning about DNA cloning for the first time. What I understand is that, in order to clone DNA, we break-up the original gene into shreds. Then try to piece it back together. Why exactly do we ...
0
votes
0answers
28 views

muscle contractions cell biology questions?

An increase in cAMP/PKA always results in muscle contractions. In smooth muscle contraction, calcium binds to troponin. Stimulation of adrenergic beta receptors on smooth muscles cause muscle ...
1
vote
1answer
24 views

brain activity responsible for imagination

Which part of brain is responsible for advance or unseen imagination For example:ones brain can make a situation in mind which is impossible to happen ...which part of brain is hyper active?
1
vote
0answers
37 views

What are the white precipitates on teeth upon adding hydrogen peroxide to them?

So I thought my teeth were a bit yellow, and so I went online for a quick fix (that might not have been the wisest thing to do) and it said that using dilute hydrogen peroxide (the kind which you use ...
2
votes
0answers
19 views

Do the eggs for larger litters come from the same meiosis events, or different ones?

There are some species of animals that give birth to more than one pup at a time. In these species, are the fertilized eggs all from one or a limited group of meiosis processes, or are they from ...
5
votes
4answers
108 views

Appropriate Buffer for electerophoresis of DNA & Protein TBE or TAE?

Which buffer is best for DNA Electrophoresis and which is best for Protein to be have a sharp bond? Considering a higher electrical conductivity compared to TAE & TBE and the generation of less ...
0
votes
0answers
18 views

Results of fermenting bakers yeast, Sugar and different categories of fruit peels

Based on this recipe I made three Jars of the fermented solution each containing: Papaya Peels Lemon+ Pomegranate peels Pineapple Peels In addition to above recipe I added 1 large tbsp of ...
0
votes
0answers
21 views

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 ...
0
votes
1answer
13 views

What are the molecular mechanisms behind tachyphylaxis (downregulation of receptors in response to an agonist?)

Anyone know of a good source which explains this? Or is this still an open question? This wikipedia article describes some molecular biology behind morphine tolerance, but it sounds like its newer ...
1
vote
1answer
48 views

What is the use of shampoo; is it for the hair or for the scalp?

Apologies for the confusing question; I did not know how to better ask it. I was doing a search on wikipedia when I found this statement. Wikipedia's entry on hair states; "The hair that is ...
0
votes
0answers
11 views

VMD set molecule as top using script

I have 10 molecules in VMD main screen and I was wondering if there is a script command to change what molecule is the top. For example, molecule ...
3
votes
1answer
40 views

Hair loss in a submarine?

Biologically, how critical is hair loss on a submarine? What is the prolonged exposure of a navy officer going to do to that person, say over a year or even more?
2
votes
2answers
41 views

Simulating Drug Entry in Protein and binding?

Is there any simulation protocol or paper which can simulate the dynamics of drug entry and interaction with the target protein?
1
vote
1answer
40 views

Why is lead dangerous? [closed]

Lead is known to be bad for your health for a long time, but I can't find a explanation why is it so. In school they teach that heavy metals are poisonous, and they are trapped inside our bodies. I ...
5
votes
1answer
28 views

Components of the concept of Developmental Noise?

Developmental noise is a concept that correspond to the amount of possible phenotypic variance of a given genotype in a given environment. Intrinsic noise (aka Cellular noise) is a component of ...
110
votes
4answers
11k views

Why do I only breathe out of one nostril?

I was just sitting with my hand next to my nose and I realized that air was only coming out of the right nostril. Why is that? I would think I would use both, it seems much more efficient. Have I ...
2
votes
1answer
22 views

How does one determine intracellular concentration?

The TL;DR version Is there a fast way to determine what the cell environment of a particular cell (E.g RBC) is? (in terms of solute/ionic concentration) I'm not sure if the question belongs here, ...
3
votes
2answers
49 views

Why shouldn't you defibrillate a flat line (asystole)?

In most popular medical dramas, when a patient is in cardiac arrest and has a flatline the doctors use a defibrillator to 'shock their heart into rhythm'. I know that actually, the proper protocol is ...
2
votes
0answers
25 views

How much time is required between repeated exposures to sun to prevent sunburn [closed]

After being in the sun, how much 'rest' is required before you can expose yourself again? e.g. from Wikipedia: Sunburn can occur in less than 15 minutes So if you were in a place where sunburn ...
0
votes
0answers
27 views

What is the protein used in retrotransposon in human?

I was wondering what protein is used in human for reversely transcribing the RNA intermediate to DNA in human being. and another Q is that what kind of cell produce this protein and when will it be ...
14
votes
2answers
5k views

Why doesn't water enter my body through my anus or genitals when swimming?

So when we swim, we can make water not enter through our nose and mouth, simply by holding our breath. However, the mouth and the nose aren't the only cavities. What about the anus and the genitals? ...
1
vote
0answers
32 views

Why is an inflammation in eye and brain more devastating and can lead to loss of organ function compared to other organ like liver etc.?

Recently I have learnt something about immunoprivileged site and I wonder why these sites like eye would prefer tolerating these antigens that sabotages the normal function of these to having ...
1
vote
0answers
11 views

How much Melatonin does the Human Body release in the course of a Night?

I have found multiple sources giving slightly different indications as to the peak Melatonin production in humans. It appears that children between ages 5 and 10 may achieve peak Melatonin/blood ...
3
votes
1answer
51 views

Why do birds move their heads abruptly?

When we humans look around, we pan smoothly from one side to the other. Birds on the other hand seem to point their head in one direction for a while, then abruptly point their head in another ...

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