0
votes
0answers
3 views

How do taenia form a species?

I know that there are many hermaphrodite animals and plants. But many of them seem to still exchange genes by mating with another member of their species. I now happened to read the Wikipedia ...
0
votes
0answers
6 views

What is wrong with this analogy: Individuals are to alleles what governments are to individuals

I'm an amateur when it comes to genetics, I'm hoping to learn something from the corrections. I am taking epigenetics into account (kind of); all 3 entities are susceptible to external physical ...
0
votes
0answers
7 views

How to operate a microtome?

In the picture above (Source: Amazon.com, United Scientific MCT001 Hand Microtome) we can see a microtome. How is it operated?
3
votes
1answer
94 views

Facultative Cannibalism?

I heard about Larger cats eating the cubs. Is it some kind of facultative cannibalism or they can eat there own kind like that? What are the facultative cannibalism present in animal kingdom? What ...
0
votes
0answers
5 views

Why doesn't the herbicide 2,4-D damage lawn grass?

I sometimes use 2,4-Dichlorophenoxyacetic acid to control broadleaved weeds in lawns. It is selective, and quickly kills the dicot weeds, while other plants are unharmed. 2,4-D is a synthetic auxin, ...
2
votes
1answer
16 views

How can a plant resist glyphosate (Roundup) herbicide?

In my area, the most common weeds that strongly resists (N-(phosphonomethyl)glycine) (glyphosate) are the horseweed, or mare's tail, Conyza canadensis, and Canada thistle, Cirsium arvense There are ...
0
votes
0answers
3 views

Why doesn't Fenoxaprop-P-ethyl damage cool season lawns?

For controlling bermudagrass, Cynodon dactylon, a serious perennial grassy lawn weed in my area, I use the herbicide Fenoxaprop-P-ethyl. It kills the bermudagrass rather well, without damaging the ...
4
votes
2answers
279 views

What happens to lactic acid I eat?

Let's say I drink some Kefir Milk, what happens to the lactic acid in the Kefir Milk that has entered my digestive system?
1
vote
0answers
23 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 ...
2
votes
0answers
26 views

How are new staining protocols designed for microscopy?

How are new staining protocols designed for microscopy? Is it manual work or does it rely on computer simulations? Say for example I thought the H&E staining does not bring enough contrast. How ...
4
votes
4answers
152 views

What kind of microscope for ML/biological research?

I am a computer science student, focusing on machine learning applications. I have been always interested in biology but I lack any training in it. Now, I had an idea that I could introduce myself to ...
0
votes
1answer
27 views

About molecules and their shape

When a molecule is being used in some biochemical process it has a certain 3-d structure. Is this maintained throughout it's usage or can one specific molecule change it's 3-d shape while it is being ...
1
vote
1answer
296 views

If penis reconstruction from a clitoris is possible why isn't penis enlargement possible?

I don't understand why, if a penis can be reconstructed from a clitoris for sex change, surgical penis enlargement is not possible.
1
vote
0answers
18 views

Verifying Protein Folds

I have recently begun using Folding@Home and I am curious how people are prevented from cheating the system. It seems to me that unless the final result is easily verifiable users could submit bogus ...
1
vote
1answer
28 views

Age of shells on beach

As a child I watched tiny fiddler crabs living in conical shells, and many years later I find that people study fossil turritellids. So now I wonder: how old are shells, typically, that you see on ...
1
vote
4answers
51 views

Why is too much glucose harmful?

I learned the citric acid cycle in biotechnology school and how cells work; about ADP and ATP and how the Cellular respiration (C6H12O6 + 6O2 -> 6CO2+6H2O) works. I am interested in understanding why ...
0
votes
1answer
21 views

Where do flies go?

Where are flies attracted most? Apart from food odours, of course. Why do they seem to be attracted by hot and humid places? Do they prefer shades or light? Why do they tend to get inside very easily? ...
1
vote
2answers
58 views

Is pork poisonous?

Besides religious prohibition, there are several non-religious arguments against eating pork. A few of which are: Pigs and swine are so poisonous that you can hardly kill them with strychnine or ...
7
votes
1answer
38 views

Is there any completely Computation Drug ever launched in market?

I am working in bioinformatics(part of it in Drug Designing) for years, still if I have no idea about it. As it is too hard to prove (Pass all Clinical trials) and get FDA Approvals. So, My question ...
2
votes
0answers
19 views

Viagra for pain management

Not all men who take Viagra experience any sexual side effects about 40% have no change of sexual abilities on the pill. However like many women the drug in such cases cause a strong pain reduction ...
0
votes
0answers
19 views

Eukaryotic Cell from Scratch part 1 [on hold]

I am wanting to make an animal cell from DNA, RNA, Protein, and Fatty Acids as well as Glucose and other sugars. I am wondering. Should I start with the cell membrane or the nucleus and nucleolus(both ...
1
vote
0answers
11 views

Can non-carbonated energy drinks boost alcohol intoxication?

I just read news article about banning caffeine in alcohol drinks and about that energy drinks increase the urge to drink alcohol. Energy drinks cause sugar intoxication - answer about it here ...
1
vote
0answers
32 views

amino acid containing branched side chain

Branched-chain amino acid are degraded by branched chain alpha-keto acid dehydrogenase complex. These amino acids aren't degraded in liver because of the absence of this enzyme(in liver).Why the ...
0
votes
0answers
25 views

How do two bodies synchronize chemical reactions ? [on hold]

I understand that some biologists have a very materialistic view of life, in the sense that everything that a living does is a result of certain chemical reactions, if that was the case then when i ...
4
votes
1answer
47 views

Does a non-extinct gliding species of bird exist?

According to wikipedia was Archaeopteryx rather glider than capable of active flight. As a hunting strategy it crawl up to a tree (or other high positioned place) and glide from it to a prey. Most of ...
3
votes
1answer
17 views

bacterial cell wall degradation in humans

can human degrade the D-amino acid present in bacterial cell wall, I'm confused about it i have read somewhere that human can do so.If yes than why we need antibiotic to kill bacteria???If it is not ...
0
votes
1answer
23 views

Periods of Heavy Speciation

I have a set of microRNA ages with corresponding labels suggesting which clade they first emerged from. For instance, for hsa-mir-1, let's say, it would have an age of Eutheria. I have several peaks ...
2
votes
1answer
30 views

What is LD50 for 25i (25I-NBOMe)?

Firstly I would like to apologise if this is not correct place to ask this question, as it can be seen more as chemistry and not biology question. I was looking around for data on psychedelic ...
0
votes
0answers
15 views

how to measure sugar concentration in growth medium

I am growing up bacteria in a flask and was wondering how do I track the changes of sugar concentration from the growth medium in the flask. Thanks for the help
4
votes
1answer
33 views

Scale up of Bacterial growth from 250mL to 1-5L?

I am currently growing up a specific strain of E.Coli with a knockout in 40mL of growth medium (LB) in a 250mL shaker flask... My ultimate goal is to scale up this process to a 1-5L large scale setup ...
2
votes
0answers
17 views

Botany related Genetically improved Leucaena leucocephala seeds

I am looking for a fast growing Leucaena leucocephala seeds. Now, I am cultivating Leucaena leucocephala which can grow 6.00 Meters in a year. But I am looking for a genetically improved seeds which ...
3
votes
1answer
19 views

Why are particulate matter toxic to humans?

There are many studies on fine particles (PM2.5) and their fully negative effect on human health. There doesn't seem to have any positive aspect of inhaling particles, except very particular ones, but ...
2
votes
1answer
30 views

Why does a housecat (or other predator) play with it's food before killing and eating it? Does it make the food taste better?

I've read a couple people theorize that a cat playing with a mouse causes the mouse's body to be flushed with adrenaline before the final kill and that this adrenaline makes the meat more ...
1
vote
0answers
32 views
+50

Breakdown of energy expenditure at the level of a single cell

The metabolic rate measures how much energy an organism expends over a unit of time. Its breakdown for the human body in terms of its functions is well documented : so much for the heart, for the ...
-1
votes
0answers
22 views

What nutritions do a human need? (survival storage of food for crises) [on hold]

I wonder how feasible it would be for a government to store food/nutritions to feed the population for two years (long enough to deal with most imaginable disaster scenarios such as "doomsday clouds" ...
2
votes
0answers
19 views

How does Halosulfuron-methyl kill nutsedge, while leaving lawn grass and most weeds undamaged?

I use Halosulfuron-methyl to control yellow and purple nutsedge in lawns. This chemical acts by interfering with the acetolactate synthase enzyme, which quickly slows cell division, and growth at all ...
4
votes
0answers
17 views

How does MSMA kill crabgrass with only minimal damage to lawn grasses?

I use MSMA (Monosodium methyl arsenate) to kill crabgrass in lawns. I am not certain of the mode of action. How does this chemical work? How does it target the annual grassy weeds, without damaging ...
4
votes
0answers
21 views

Why doesn't Clopyralid damage cool season lawn grasses?

I use Clopyralid (3,6-dichloro-2-pyridinecarboxilic acid) to kill broad leaved weeds in lawns. From my understanding, it works by mimicking an auxin which affects plant growth. Naturally this pulls ...
5
votes
1answer
30 views

Can neurotransmitter depletion cause short-term drug tolerance?

I'm curious to know if neurotransmitter degradation factors into drug tolerance and neural conduction and, if so, to what extent. As I recall from textbooks I read as an undergrad, one mechanism of ...
0
votes
0answers
14 views

Any relevant knowledge/studies about voluntary goose bumps

I'm not entirely sure how normal this is, but since I was a child, I've been able to produce myself voluntarily a "chill" sensation that seems to start on my head and traverse the rest of my body, ...
2
votes
0answers
17 views

Isoprene and Acrolein emissions of wood burning, insect burning and smoldering tobacco cigarette

I'd like to identify what makes a fume more or less toxic, above all those from commonly smoked organic stuff: tobacco, cannabis, comparatively to less common ones. For that, we can focus on 2 gas ...
5
votes
1answer
40 views

Why do Mangoes have a single large seed, and not multiple small ones?

I was just thinking about this, wouldn't it make more sense for a mango to have multiple seeds, as it would allow more seed propagation?
1
vote
1answer
25 views

Does documentation exist that shows the evolutionary connection between common horses and the okapi?

I'm trying to put together some documentation on the relation between the common (modern) horse and the okapi. I've found a tree that shows that connection but it has no references. I'm hoping that ...
3
votes
1answer
33 views

Hypersensitivity Simultaneously in Ear canals

I got experimental data where hypersensitivity (i.e. tonic pain when touching ear canal) was recognised for about 100 minutes. I do not know which type of hypersensitivity is this one. IgM can ...
2
votes
1answer
93 views

Is there some genetic variance underlying music appreciation?

Is there any research done on the genetic variance for Music appreciation? If not, why is there no genetic variance for this trait?
7
votes
1answer
73 views

How can flies sense mirrors?

I've noted that flies in my house have no problem landing on even perfectly clean mirrors. Why don't they fly straight into them? Can they sense that there is a surface there, even though they can't ...
5
votes
2answers
218 views

What limits the speed of human perception?

I'm writing a novel in which the main character's perception and thought processes are sped up considerably, in essence slowing down the world around him. To others, it seems like his reactions are ...
8
votes
1answer
446 views

What is the female equivalent of the morning erection that some men experience?

There was question about what causes "morning wood." It was answered that the erection in the morning is caused by decline of norepinephrine during REM sleep. Which in part allows to prevent ...
4
votes
1answer
27 views

What does hemozoin do?

My bio book refers to HEMOZOIN that is responsible for the shiver during malaria. How does hemozoin work to raise the body heat?
2
votes
1answer
23 views

Why does crying lead to a running nose and reddened nose tip?

Why do we have a running nose for quite some time after crying? It persists even after we stop crying. Why is it so? I have faced this always. Also, why does our nose redden on crying for long?

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