2
votes
0answers
17 views

Immediate stroke/seizure Therapy

Can an oncoming stroke/seizure, be stopped by a setup consisting of a brain-computer-interface (BCI) that immediately detects the variation in wave-form, and then another machine that neutralizes the ...
1
vote
1answer
53 views

Role of Calcium and Magnesium in capacitation/acrosome reaction

During the acrosome reaction, the activation enzyme present in the sperm dissolves the corona radiata and zona pellucida enabling the sperm to reach the plasma membrane of the egg. Also calcium and ...
2
votes
1answer
31 views

How does the ideal free distribution work?

I have recently completed a study on Brent Goose. I found that Brent Geese occupy high quality habitat first then once this is full of geese, they fill up low quality habitat. However, there were ...
3
votes
2answers
63 views

What does confluency mean?

Since as long as I have been doing cell culture, the word confluency is used to describe the % growth of cells or area covered by them. However, no dictionary that I have found uses this word. I was ...
0
votes
0answers
12 views

Does the use of a Thiazide diuretic affect the ability of a hair follicle to absorb substances?

Thiazide diuretics are on the World Anti Doping Agency's, as well as the International Olympic Committee, list of banned substances due to it ability to mask illegal substances in urine. The rapid ...
1
vote
3answers
50 views

Can a portion of human skin cells be modified in some way to generate light? [closed]

I have come across some species of living organisms who are able to emit light at whim. Can that ability be incorporated into a portion of human skin (a specialized tissue)?
1
vote
1answer
15 views

What do we use as baseline to determine what genetic segments are “mutations” (and what are not)

In order to determine whether a particular segment of genetic code is a mutation, there must first be a baseline code on which that code looks somehow different. How has the baseline code been ...
1
vote
0answers
6 views

How to differentiate between similar looking carps efficiently?

Carps look almost the same (e.g - Rohu, Catla). So, is there a specific distinguishing set of characteristics to help determine their species just by looking at them from afar (or maybe in some other ...
-2
votes
0answers
20 views

How robust are immortalized cell lines? [closed]

I was listening to this story by Radiolab where they mention that HeLa cells contaminate other cell cultures and can float on specks of dust. Wikipedia says that HeLa cells are robust. My question is ...
0
votes
0answers
9 views

HMMSearch full output

is there a way to get a full sequence output for hmmsearch? I am running one sequence against my HMM and the result table only shows chunks. I would like to have a result for each AA in my sequence ...
0
votes
1answer
69 views

Why have whales and dolphins not evolved to have gills?

It seems at first glance that it would be an evolutionary disadvantage for a sea creature to have to come up to the surface on a regular basis in order to breathe, so why are there animals (e.g. ...
0
votes
2answers
38 views

What percentage of human body's cells are contained in blood?

What percentage of human body's cells are contained in blood vs. the rest of the body?
1
vote
2answers
28 views

Can ingesting substances that are produced by the body cause a permanent withering of the organs that produce the substance?

This question is about substances such as insulin and some vitamins that the human body is able to produce on its own. Some substances that are produced by the body are also present in various body ...
2
votes
1answer
65 views

How come all my family have brown eyes and I have blue eyes?

My whole family tree up to my grandparents have brown eyes, I have blue eyes, how come? I don't know if it matters but I have not received enough oxygen at birth, doctors said it's probably the ...
6
votes
2answers
68 views

Why is blood removed from meat? [closed]

Blood is removed from meat before it is consumed. Below is, for example, how chickens are processed from Wikipedia. Removed from transport cages Hung by the legs on a shackle, mounted on a conveyor ...
0
votes
0answers
12 views

EMBOSS matcher and supermatcher - incongruent results?

I am trying to align a sequence to the mouse genome. I know a priori that part of my sequence should align to chromosome 9, but not all of it. I gathered that EMBOSS' ...
4
votes
7answers
1k views

Can we harvest energy from plants?

This is a cross-cutting question but I think its core is about biology. Our society's need for energy is dramatically growing and we are messing up with our environment to answer them. Maybe another ...
4
votes
1answer
365 views

How does toluene inhalation damage the brain?

We just had a discussion about toluene abuse. It is known, that people inhaling toluene for a long time have significant brain damage, including decreased intelligence. I found that toluene is a ...
-4
votes
0answers
31 views

Do chemical differences in the male and female body influence differences in brain development? [closed]

I asked the question Have different mental strengths evolved in men and women?, being curious about differences in the mental strengths of men and women, but after reading that men and women have very ...
1
vote
0answers
20 views

Why HIS tag is not detected in WB or dot blot?

I would like to know why the recombinant protein with his tag at c terminus is not being detected neither in western blot or dot blot. I'm trying to validate protein expression of four proteins. ...
1
vote
2answers
67 views

Should hydrogen peroxide be applied on a bloody nose? [closed]

When I was a kid, my parents taught me to apply hydrogen peroxide on my nose whenever it bled. It's a rare event, but my nose bleeds from time to time, and when it does, I always go through the same ...
0
votes
1answer
58 views

Do men and women have parts of the brain that show different level of activities? [closed]

I think that men and women are different mentally (but nonetheless equals), however this way of thinking is very hard for me to explain philosophically, so I'd like to learn about what roots this ...
0
votes
0answers
18 views

Insomnia & Bowel Movements [closed]

Serious question, first of all. I've had sleeping issues most of my life so I pay pretty close attention to my sleep/daily living patterns to see where I can improve my sleep. I've noticed that on ...
2
votes
1answer
63 views

How do Streptococcus thermophilus and Lactobacillus bulgaricus precipitate the curd of swiss cheese?

I learned in my food microbiology class that Streptococcus thermophilus and Lactobacillus bulgaricus precipitate the curd of swiss cheese. However, I was wondering what type of mechanisms do these ...
-3
votes
1answer
42 views

How far can we go in engineering our own evolution? [closed]

After recently seeing Christopher Nolan's Interstellar and reading Kip Thorne's The Science of Interstellar, I've seriously been reflecting on the challenges mankind faces in becoming space pioneers, ...
0
votes
1answer
20 views

How does the Pectoralis Major work when doing a bench press?

Disclaimer, I'm not a biology undergrad and I only know the basics about muscle movement. I know that doing a bench press works the chest, and specifically the Pectoralis Major because, well, I feel ...
1
vote
1answer
105 views

Arm at Heart Level when Measuring Blood Pressure

How come that one's arm has to be at heart level so that the blood pressure can be measured accurately. I've tried researching this question, but most answers to it were just "if the arm is above the ...
14
votes
2answers
2k views

Is any known plant magnetic?

Is there a plant (not a microscopic type but one that is visible to the naked eye) that has so much iron (or magnetite), cobalt, or nickel in its body that it can attract a magnet? In this case ...
0
votes
1answer
22 views

What does gene encoding receptor mean? [closed]

What does gene encoding receptor mean? I know what each of these of these words separately, but cant identify the exact meaning of the complete phrase, I cant visualize. Please help me!
2
votes
2answers
211 views

How can we know or measure pain in animals?

Is there any standard way to know how much pain an animal feels when it gets hurt like when a bird loses it's wing or hen when killed etc. All pain sensation points? Hey I'm new to biology. :)
1
vote
2answers
30 views

What's keeping living species from rotting?

Why do only corpses of species rot and be eaten by bacteria? What is keeping us from rotting? Just like fruits, and foods we eat; meat and vegetables rot when left uneaten. Like food, corpses rot and ...
3
votes
1answer
21 views

Authority on Microbiological Definitions

Is there an authority on definitions for molecular microbiology concepts, like an IUPAC book for chemical definitions? The particular definition I am debating is chromatin. Some say it encompasses ...
1
vote
0answers
22 views

Can I use yogurt to prevent the growth of black mold?

I have a mold problem in my bathroom. There is a narrow groove between the top of my tub and the wall it is attached to where a black gunk repeatedly grows. I can shoot the material out with a spray ...
0
votes
0answers
7 views

choice of negative stains in general

I have isolated a large molecular complex whose integrity is very sensitive to increasing ionic strength and thus had to be prepared for EM using low ionic strength solutions. My goal is image this by ...
0
votes
1answer
26 views

Effects of lactic acid ingestion [closed]

What would happen if I drink lactic acid? I use lactic acid to clean an espresso coffee machine and I wonder what injuries could occour drinking it.
0
votes
0answers
23 views

how to extract promoter regions given a TF binding site

I have constructed a PWM and want to test its accuracy. Scanning an entire chromosome (chr3, hg18) yields very high false positives (magnitudes higher than the true positives). Scanning the entire ...
0
votes
0answers
8 views

Reasons preirradiation of negatively stained and plastic embedded specimens with a low electron dose improve stability to electron irradiation

It is known that preirradiation of negatively stained and plastic embedded specimens with a low electron dose improves their stability to electron irradiation. But my question is why this occurs? ...
6
votes
3answers
108 views

Do both ends of a muscle contract?

I was under the impression that both ends of a muscle contract. For instance, the fibers of the biceps run parallel to the humerus so I thought they pulled toward the middle. But now I'm confused ...
0
votes
0answers
11 views

Demultiplexing symmetric PacBio reads

I have PacBio CCS.h5 and the corresponding fasta and fastq files and I would like to demultiplex them. Does anyone know of how this can be done in the absence of bas.h5 files. Thanks for your help! ...
4
votes
2answers
44 views

Lyonization vs Genetic Imprinting

Lyonization is the process in which there is inactivation of an X chromosome in females. This process is implicated in mosaic forms of turner's syndrome (in this case the altered ...
2
votes
1answer
24 views

Why is oxaloacetate made in the mitochondria?

I'm looking at the gluconeogenic pathway: Pyruvate is shuttled into the mitochondria from the cytosol, converted to oxaloacetate by pyruvate carboxylase, converted to malate which is then shuttled ...
6
votes
2answers
107 views

What does pain look like in wave form?

I am interested in understanding what "pain" and "hot/cold" look like, as far as waves signatures (signal processing) go. My general understanding of how pain (nociceptive pathways) and hot/cold ...
0
votes
0answers
11 views

How to increase contrast with only a top entry specimen holder

My question is: If my microscope had a top entry specimen holder, instead of a side entry holder, what additional option(s) should I have to increase the contrast with the same constraint that I only ...
3
votes
1answer
31 views

What is the purpose of narwals' tusks?

I've heard that narwals can grow their tusks up to 16 ft long. What do they need the tusk for? Hunting? Comunication?
0
votes
1answer
20 views

Which is a more profitable feature: codominant or a incomplete dominant feature [closed]

If we want to have as much as possible red flowers, in which case we would be more successful: when the color of flower is a codominant or a incomplete dominant feature? We have only learned the ...
2
votes
1answer
26 views

DNA replacement: new species

This is a hypothetical question What would happen if the DNA of a prokaryote was replaced with the one of a prokaryote of another species, would the cell structures change and adapt to the new DNA ...
3
votes
1answer
88 views

Pros/cons: linear vs. circular DNA [duplicate]

Why did Eukaryotes evolve to have linear DNA and not circular like Prokaryotes? What are the pros and/or cons?
7
votes
2answers
101 views

A good textbook on GMO

I am interested in learning about GMO. The topic is so wrapped in controversy, that it's hard to find a good book that introduces the basic concepts involved. I went through various university ...
1
vote
2answers
30 views

Determination of a chemical compound in a non-homogeneous sample

This is a more generalized question of my other question here. I want to know if it is possible to determine a chemical compound in a non-homogeneous sample. I am asking this because we are aiming ...
0
votes
0answers
14 views

a question about negative stains

I have isolated a large molecular complex whose integrity is very sensitive to increasing ionic strength and thus had to be prepared for EM using low ionic strength solutions. My goal is image this by ...

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