0
votes
0answers
5 views

What happens to the mold spores we inhale?

What happens to the mold spores we inhale? I'm guessing when we exhale, many of them are expelled back out to the environment. But given that disease can be caused by mold exposure, I'm also ...
0
votes
0answers
7 views

Can carbohydrates be peptides, nucleotides, phospholipids, or disaccharides? [on hold]

Can carbohydrates be peptides, nucleotides, phospholipids, or disaccharides? Explanation why please
0
votes
0answers
5 views

Heat Conductance directly in ECG device?

I have seen many ECG chips which include respiratory process but none which offers directly heat conductance. Heat conductance would offer better evaluation of the basal metabolic rate. Current ...
1
vote
0answers
15 views

What does nature do to prevent paw-snowballs?

This question made me wonder, why for example wolves don't suffer from these "paw snowballs"? (...) but after a few miles on the trails in soft snow, he often develops snowballs between his paw ...
0
votes
0answers
14 views

What is suction tension? [on hold]

I have come across the term and don't get the meaning. I'm seeking an explanation. I've seared the internet. Thank you.
0
votes
0answers
11 views

Types of fermentation?

I read about several rarer forms of fermentation such as ABE, and heterolactic. What is the full list of all known types of fermentation, and what are the differences between them?
0
votes
0answers
3 views

Highest and lowest values(in microvolt) in ECG for humans?

I'm currently trying to parse the records captured from the ECG device and display them on a mobile application. Just wondering what are the highest and lowest possible values for humans? What may ...
4
votes
2answers
209 views

Why do carnivores evolve?

If humans can live without consuming other animals, then why we do it; from a biological point of view, why do we eat meat? I would also extend the question to another animals, because many animals ...
0
votes
0answers
8 views

E. coli UV exposure?

What amount of UV can E. coli survive? Or how should I phrase my query when searching for research on this topic? I know that UVC will kill E. coli after an amount of time, but I'm not finding much ...
0
votes
0answers
10 views

Are there water conservation methods that increase waste instead of reduce it? [migrated]

For example, does improperly washing clothes lead to mosquito increases or other-organism morbidity? Does using dish water on the garden attribute to clean water more or more wasted water (is it ...
0
votes
0answers
10 views

Obtaining a mapping of RefSeq ACs to Uniprot ACs

I am trying to obtain a mapping for RefSeq Accession Numbers to Uniprot Accession Numbers. I can write a script to do this for a list of RefSeq ACs like this: ...
0
votes
0answers
7 views

Looking for hard cell segmentation problem

I am a physicist working on a new image segmentation technique, and I would like to test it by segmenting some images with low-refined cells on a noisy background... Do you know where I could find ...
0
votes
1answer
26 views

When you take a very cold or hot bath how is that influencing your breath?

It looks like when you take a cold shower or bath your vains are getting smaller and when its hot your vains are getting wider. But is that wright and do you need to take a breath more in both cases ...
-1
votes
1answer
21 views

How is CO2 related to acidity?

In a plant cell why does increase in concentration of CO2 increase the acidity of the cell sap. Thank you
0
votes
2answers
34 views

Structure of Cell

Are cells spheres or ovals/circles bound by phospholipidbilayer? If they are spherical how are we able to see the nucleus through the phospholipid bilayer under a microscope?
0
votes
1answer
14 views

What happens if both forward and reverse primers have same Tm?

One of the key rules in primer designing is that Tm (melting temperature) of forward and reverse primers should be in the range of ±5°C. For example, if ...
2
votes
1answer
27 views

Is there an acceptable term for 'male fox' other than 'dog'?

I'm writing a lab on sexual dimorphism in Arctic foxes. As such, I use the words 'dog' and 'vixen' fairly often. In the discussion section, I compare the results from the lab with the results from ...
0
votes
0answers
12 views

mRNA extraction from mice ears.

I am trying to extract RNA from mice ears and for some reason I don't have RNA when I perform the electrophoresis. I directly cut the ears and I put it in a tube with a bead and trizol. then I place ...
3
votes
1answer
28 views

What is the function of the polar bodies produced during oogenesis?

Why are polar bodies produced during oogenesis in human females? I read that polar bodies are produced during meiosis so that the oogonium (or gamete mother cell) can be converted into a haploid ...
1
vote
0answers
9 views

Database/Reference on optimal conditions for plant growth in greenhouses [on hold]

We are a group of computer science students currently working on a university project to create a (almost) self-sufficient greenhouse. The hardware and software aspects being almost finished, we ...
0
votes
0answers
3 views

How to incorporate intraspecific variation in discrete characters in comparative analyzes?

I'd like to run a multivariate analysis (Pavoine et al. 2011) that aims to disentagle the effect of environmental gradients on traits, considering its autocorrelation with phylogeny and space. It uses ...
1
vote
0answers
38 views

why does brain produces noise? [duplicate]

when i look at a white wall i see little colored dots moving in circles filling my whole visual view, just like the static on a tv but then in color. I thought everybody had this but recently i ...
3
votes
0answers
19 views

What, if any, experimental evidence is there that flies rub their legs together in order to clean them? [duplicate]

Everybody's seen a fly rubbing its hands together like Mr Burns. And almost everybody's heard the standard explanation - that it's cleaning itself. Now, this is certainly a very plausible explanation, ...
0
votes
0answers
8 views

Gut fauna genetics vs epigenetics [on hold]

During childhood your gut fauna gets populated from the environment and the people you meet. Unlike baby koalas, we do not eat our parent's faeces to populate that fauna. The environment in your gut ...
0
votes
0answers
6 views

Oligomeric states of Phyre model

Is it possible to generate an oligomeric state for a phyre model? As it lacks crystal packing information "Generate>Symmetry_mates" obviously does not work in PyMol. I assume that the fit is not ...
0
votes
0answers
23 views

Difference between genetic adaptability and micro evolution? [on hold]

Do both occur at individual level? And which among the two is responsible for a species to maintain its specificity?
0
votes
0answers
12 views

Cloning Stragedy

Recently I am learning about TOPO cloning in a class. I have questions regarding to this: In the TOPO-TA cloning, they use topoisomerase I to cut the backbone of the vector so it will covalently bind ...
0
votes
1answer
47 views

What are most common natural causes of death?

What are most frequently occurring natural causes of death?
0
votes
0answers
7 views

Placental Adherence and Premature Heartbeat

I am studying the placental adherence in premature fetuses i.e. from 22nd week to 38th week of gestational age. About 60% of placental adherences are diagnosed during labour, which increases the risk ...
0
votes
0answers
19 views

Does the source of caffeine affect the biological impact?

I've recently decided to give up my morning coffee in lieu of a caffeine pill. Both are around 200mg (my Tim Horton's XL 4x4 was 240 mg of caffeine) of caffeine. We were talking about the various ...
0
votes
1answer
20 views

Concentration of a specific promoter in a cell?

I want to simulate transcription activation by a given transcription factor (TF) with known kinetics. The binding rate $k_{on}$ is given in $\mu M^{-1} s^{-1} $, describing a bimolecular reaction ...
0
votes
0answers
16 views

What is the effect of sodium chloride on head lice?

There are a lot of products that claim to kill lice and eggs. The main ingredient is sodium chloride. How does it work? I wonder if it has something to do with osmotic effects?
1
vote
2answers
33 views

How does the mechanism which controls blood pressure in the brain work?

I've heard that the blood pressure in the brain is organised by a special mechanism. What is that and how does it work?
1
vote
0answers
24 views

Can the activity of bacteria be influenced by magnetism?

Some organisms are tuning their direction on a magnetic field. But are bacteria also reacting on magnetic fields and can it be used in health therapie as a kind of 'antibiotic'?
2
votes
1answer
23 views

What is it that specifically kills ALS patients?

ALS is a fatal motor neuron disease, and even though there are many different articles out there on the topic "How does ALS actually kill you?", none of them really delve deep enough into biology to ...
1
vote
0answers
12 views

Is the efferent arteriole a pathway for filtrate through the nephron ?

I am studying the urinary system. I have to identify what part of the nephron is not a pathway for filtrate. I believed the collecting duct is not a pathway for filtrate because once the filtrate ...
2
votes
1answer
20 views

What physical or mental actions can be picked up by EEGs?

There certainly seem to be a lot of gadgets and gizmos leveraging EEG technologies to the control of devices. This makes me wonder: what intentions/thoughts can be captured by EEG technology, and ...
4
votes
2answers
49 views

What is the definition of a mutation?

There are two alleles that determine the sensitivity of a person to Coumadin (a medicine for blood thinners used to treat a stroke etc). Sometimes you encounter the terminology that one has a mutation ...
3
votes
1answer
76 views

Good pipetting technique?

Good pipetting technique is essential for many biologists, but it can be hard to get right. When I take 1 µl of liquid using a micropipette, I seem to always take less than 1 µl, and that amount is ...
2
votes
1answer
46 views

What do proton pump inhibitors do?

I know that sodium azide and 2,4-DNPH inhibit proton pumps. The azide is called an inhibitor and 2,4-DNP is called uncoupler. I want to know what's the difference between the mechanisms of action of ...
1
vote
0answers
15 views

Can the human body switch to a “starvation” mode? [migrated]

I've heard on multiple occasions from less than credible sources that dieting by eating less (usually implemented by skipping meals, not smaller meals) will cause the human body to enter some sort of ...
0
votes
0answers
33 views

Why do denatured proteins tend to be less soluble than the native protein?

Why do denatured proteins tend to be less soluble than the native protein? In terms of hydrophobic effects, could anyone explain this phenomenon for me?
1
vote
1answer
34 views

How and why do skin tags develop?

WebMD writes: Skin tags are small, soft pieces of skin that stick out on a thin stem. They most often appear on the neck, armpits, upper trunk, and body folds. The cause of skin tags is not known. ...
2
votes
0answers
14 views

Do primate RGCs have overlapping receptive fields?

According to this link, http://hubel.med.harvard.edu/book/b10.htm retinal ganglion cells (RGCs) receive input from overlapping receptive fields (RFs). This is also an idea used in convolutional ...
2
votes
0answers
12 views

How would one identify cellular transcription factors associated with a viral protein in a treated cell line?

I've been working as the computer guy for a microbiology lab for the past few months. I've always been interested in bench work, but my wet lab experience is rather limited and thus so is my ...
0
votes
0answers
8 views

What is the function of the Moderator band?

The moderator band in the right ventricle is a band sorts of muscle which consists of a significant branch of the AV bundle. Does it mean it delivers impulses to the anterior papillary muscle faster? ...
0
votes
0answers
7 views

how to see prefrontal cortex works normally by a test?

Is there a test to see if the Prefrontal cortex of someone works normally? especially a simple test like a questionnaire that you give the individuals to fill out and based on their answer you obtain ...
0
votes
0answers
28 views

Sexing fish from a tissue sample

How can you tell the gender of a fish from a tissue or blood sample and what equipment do you need (how much magnification in a microscope)? A bit more info: I am a member of a local fish club, we ...
1
vote
1answer
48 views

What causes swelling after impact?

Why does the head swell after getting hit by something hard? What is the liquid that forms after impact?
0
votes
0answers
6 views

Energy efficiency of carbohydrate > fat conversion

How efficient is the human body in converting surplus carbohydrate into fat? E.g., if you have 100 calories' worth of carbohydrates at the start of the process, how many calories' worth of fat will ...

15 30 50 per page