3
votes
2answers
35 views

Are there known downsides to removing UV mutation hotspots to prevent some skin cancers (Genetic sunblock)?

Khavari et al. recently demonstrated that a significant fraction of one of the major forms of skin cancer (cutaneous squamous cell carcinomas) are associated with a mutated KNSTRN gene (a protein ...
1
vote
1answer
16 views

Drugs metabolism and detection

If someone is taking treatment for a psychiatric disorder, for example diazepine, would traces of the metabolized drug show in their sweat or saliva? Would it be chemically detectable?Any links to ...
2
votes
1answer
17 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 ...
4
votes
1answer
54 views

What's the longest transcript known?

What's the longest functional transcript known? I'm wondering about RNA length post splicing, so not including introns.
2
votes
1answer
80 views

Why do cockroaches burst from soapy water?

(careful, disturbing!) I was experimenting with some stray cockroaches that ended up falling in my bath tub overnight (there is currently an infestation undergoing in my apartment building) and I ...
1
vote
0answers
12 views

A visualization of reaction fluxes through the core metabolism of E.coli?

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
16 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 ...
3
votes
1answer
37 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.
3
votes
1answer
38 views

How efficient is the human body at metabolizing food?

My friend and I were having a discussion over how "efficient" human digestion is. If a human ate a 1000 calorie hamburger, how many of those calories (how much energy) does the body process into ...
3
votes
1answer
26 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
38 views

Manufacturing of Bio Molecules

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
23 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 ...
2
votes
1answer
20 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 ...
1
vote
1answer
26 views

What are the benefits of statins in terms of prolonging life?

Recently the UK government suggested that all adults over the age of 50, without exception, would benefit from taking statins. I have an elderly female relative who may, or may not have had a minor ...
5
votes
4answers
97 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 ...
1
vote
1answer
32 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 ...
0
votes
0answers
15 views

Should I be worried if I sweat too much? [on hold]

I have been facing this since I was young, when I played the piano, my palms would become sweaty. Lately I've been noticing my hands have been sweatier than ever, and even the soles of my feet. This ...
8
votes
3answers
533 views

Evolution of bird wings

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 ...
6
votes
2answers
55 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 ...
81
votes
4answers
7k 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 ...
4
votes
2answers
114 views

Where do the 31 spinal nerves start/meet?

Which part of the brain is the first place (from top to bottom) where all 31 pairs of spinal nerves (on each side) meet? Or if they all start at one place - where is that? Nominally, the beginning of ...
5
votes
1answer
27 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, ...
2
votes
1answer
87 views

Which process is needed to complete male reproductive development?

In order to properly complete male reproductive development: ...
1
vote
1answer
52 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 ...
6
votes
1answer
136 views
+100

Machine learning for light microscopy — problems to solve?

I would like solve some biological problems that would improve the state-of-the-art of biology or bioinformatics. In particular, I want to apply machine learning on light microscopic images. The ...
-7
votes
1answer
48 views

Evolution 15 + 15 [on hold]

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 ...
9
votes
1answer
7k views

Can a person really die quickly from biting their tongue?

A common trope in certain circles (like Eastern martial fiction), is someone committing quick suicide by biting his or her tongue. But is this really possible? The internet turns up millions of ...
20
votes
3answers
3k views

What actually happens when my leg 'falls asleep'?

Most people have experienced the temporary loss of feeling and tingling in their leg resulting from sitting in an abnormal position for a short while. Usually you get a loss of feeling in your leg ...
2
votes
4answers
640 views

Antigen Antibody reactions during blood donation

A person wih blood group O is called a Universal Donor. Well, his plasma contains antibodies A and B. During blood donation, if blood group O is given to a person with blood group A (since blood group ...
0
votes
0answers
17 views

Brain and its activity [on hold]

How could we increase our brain activity.. memory ..reasoning ..imagination.i have some time got very unique ideas but some time im failed in reasoning.,although this both tasks are performed by same ...
1
vote
1answer
22 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?
3
votes
1answer
20 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 ...
12
votes
3answers
26k views

What is a coupled reaction and why do cells couple reactions?

I was wondering what exactly a coupled reaction is and why cells couple them. I read the wikipedia article as well as several others, such as life.illinois.edu but I still don't get it. Could ...
2
votes
1answer
118 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 ...
3
votes
1answer
91 views
+50

Integration of several environmental signals

I am looking for examples of different functions that are good fit to how signals are computed in order to respond to the environment. Let's make my question more copmrehensible with an example... ...
3
votes
1answer
37 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
74 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 ...
4
votes
1answer
83 views

Counterintuitive action of Vitamin D?

Vitamin D acts in a way which to me is counterintuitive. It functionally supplemets Parathormone. It in the intestinal tract steps up calcium absorption by altering nuclear gene expression and also ...
4
votes
1answer
45 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 ...
4
votes
1answer
73 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 ...
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 ...
2
votes
2answers
35 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 ...
1
vote
1answer
39 views

Influence of temperature on protein binding and decay rates

For computer modeling purposes, I am looking for some referenced quantitative measurements of the effect(s) of temperature on the dynamic of biochemical reactions. Question In particular, my ...
2
votes
2answers
37 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?
2
votes
1answer
24 views

Do river sharks (genus Glyphis) have reduced rectal glands for salt removal?

Do river sharks of the genus Glyphis have reduced or absent rectal glands for salt removal?   The rectal gland of marine sharks removes excess salts to maintain osmotic balance (Oguri 1964).  In ...
0
votes
0answers
11 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), ...
0
votes
0answers
11 views

How does temperature influences rate of protein decay?

For computer modeling purposes, I am looking for some referenced quantitative measurements of the effect(s) of temperature on the dynamic of biochemical reactions. Question In particular, my ...
2
votes
1answer
52 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: ...
3
votes
1answer
31 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
16 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 ...

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