0
votes
0answers
2 views

If oxygen deficiency is bad even for a short while, why do people swim?

This may be trivia to many of you. Textbook says the oxygen deficiency, even for a short while can injure our cells. Then why do people go for sports like swimming? (where rhythmic breathing is ...
0
votes
0answers
3 views

Cell energy consumption and food intake

I am wondering if each cell in human body starts consuming ten percent more energy, how much food one has to consume compared to normal intake?
0
votes
0answers
10 views

If I fall into a pond with an algal bloom, could I die from the cyanotoxins?

Suppose I fell into a pond with an algal bloom, and swam in it for a bit, but did not ingest any of the pond water (this is a hypothetical btw). Some algal blooms are harmful, containing natural ...
-1
votes
0answers
5 views

What is the explanation for forensic samples with abundant suspect's nDNA and no suspect's mtDNA at all?

What is the explanation when DNA tests on the same biological trace show a perfect STR markers match for a person's nDNA but his mtDNA cannot be found in the same sample? And degradation must be ...
1
vote
1answer
18 views

Book/source for learning bioinformatics, focused on genomics?

Does anyone know of sources for learning bioinformatics, focused on genomics? I would like to learn alot of skills I could apply potently in the workforce if I ever became adept at the fields. My ...
2
votes
2answers
22 views

Why *morning walk*?

My PT teachers professes working-out/training in early morning hours is the best time to do so, a quick search on benefits of morning walk (or some similar phrase) reveals a lot of information which ...
0
votes
0answers
5 views

Does creatine-phosphate (CP) supplementation regenerate NADH?

I have the following facts: It is possible to convert ATP <-> creatine vice-versa. (ref - non scientific) CP supplementation protects against metabolic syndrome. ref1 ref2 Fructose digestion ...
0
votes
2answers
36 views

Did cats evolve from monkeys ? or vice versa?

Did cats evolve from monkeys ? or vice versa ? How similar are the genes of cats and monkeys ? What is the proof that they are related or that they are not related ? Most monkeys climb in trees and ...
1
vote
0answers
17 views

One targeted mutation that cause cell death?

Is there possibility to make one targeted DNA mutation in the cell, that will cause its death? My question: What gene (one) we need to target to cause cell death? (Human cells, searching for ...
0
votes
1answer
12 views

Do sodium channels keep renewing themselves with new subunits made by genes?

genes make alpha beta gamma subunits (proteins) to be used in making sodium channels... If I understand correctly? And so, since the genes keep making those subunits, does that mean new sodium ...
4
votes
1answer
23 views

Why can I see a light flicker when it's in my peripheral vision?

When I'm looking at an old CRT monitor or a worn fluorescent lamp, but not directly in the center of my gaze, the light from it seems to flicker. When I focus my gaze onto the monitor or lamp, the ...
-1
votes
0answers
31 views

Can my girfriend get pregnant if …? [on hold]

We just had sex my girlfriend and I for the first time. We had 3 runs, first run was unprotected, I did not ejaculated inside, but outside, then repenetrated unprotected. Second run was protected with ...
3
votes
0answers
15 views

Which sequence assemblers I can use to compare different paradigms?

I'm a high school student whose interested in bioinformatics. Therefore I chose a project which I study Sequence Assembly. My main goal is to compare different paradigms (Greedy, OLC, De Bruijn). I ...
0
votes
0answers
26 views

Do genes keep coding for sodium channels functions throughout life and not just once at beginning? [on hold]

Regarding the genes for sodium channel functions. Do the genes determine sodium channels functions and behaviors for life when the organism is an embryo? Or do genes continue coding how the sodium ...
0
votes
1answer
30 views

Is it possible to knock out a gene in adults?

gene knockout is mainly used in creating newborn animals... right? Well can you do it to already-adult animals or humans so that they themselves would experience change in their body and not just ...
1
vote
1answer
12 views

Literature that demonstrates organisms have a competitive advantage in numbers

I'm studying two bird populations that are competing against each other for a resource: Population A and Population B. Population A is present in much higher numbers than Population B, and as a ...
3
votes
0answers
12 views

What is the most reliable tumour suppressing gene for NSCLC?

I was looking at some tumour suppressing genes that can be helpful in diagnosing lung cancer (particularly NSCLC - Non-small-cell lung carcinoma) at an early stage. I came across a few such as p53, ...
4
votes
3answers
887 views

What has caused life to choose this unfathomably tiny subset of all possible proteins?

I wonder why life uses the particular proteins that it does, about 10^6 different proteins, I think? Evolution cannot explain it because the number of possible proteins is far far too large to ever ...
1
vote
0answers
9 views

Is emergence connected to nature's transition between fractal regimes at different size scales?

A fractal algorithm like Mandelbrot is self-similar in all size scales. This is not the case in nature. A tree is fractal in the sense that each branch is similar to the tree as a whole. But that is ...
1
vote
1answer
21 views

Which monkey species features two distinct male phenotypes?

I remember coming across a popular science article years ago about a monkey species which featured two male genotypes: the first were good looking males who acquired social status (as alphas or betas) ...
-1
votes
0answers
20 views

Increasing height after 21 years [on hold]

I am 21 years old guy and my height is only 5.4". Both my parents are short heighted. My family is also short heighted but my mom's family have a preety fair height. I have a younger brother and he is ...
0
votes
2answers
54 views

Non Coding DNA and its effect on evolution

I had a discussion with a friend of mine; from his understanding, bacteria and other small organisms have higher amounts of "coding" DNA and, as such, are able to evolve much faster than organisms ...
1
vote
0answers
12 views

Alder Tree Root Nodule Origins?

I recently found out that alder trees have root nodules which contain nitrogen-fixing bacteria and that alders are primary colonizers in primary succession. That leads me to this question: since there ...
-3
votes
0answers
48 views

Why are the palms of hand salty? [on hold]

I know that palms and soles have the highest sweat gland density. I am wondering if that is the only reason the palms and fingers on the flexor side get salty. Generally people wash their hand many ...
0
votes
1answer
41 views

Formation of life on other Planets [on hold]

At the present time it looks as if there is no other life in the Universe other than here on Earth . If this is true then why didn't it occur anywhere else ? Is it possible for something to happen ...
3
votes
1answer
33 views

What's a mouth ulcer/canker sore “made of”, and why do they develop?

Mouth ulcers are red/white rings with a crater. They are sore and last for 7-10 days. What I want to know is what they are 'made of' - i.e., what is the ring filled with, and why is the centre crater ...
4
votes
1answer
42 views

Latency in our senses

I would be interested in knowing how long it takes between the moment something touches our skin and the moment something is activated in the brain. Also how long does it take in total until we ...
3
votes
0answers
23 views

Photolysis of Water?

In chemistry, I studied the decomposition of water as being $2H_2O_{(l)} \rightarrow 2H_{2(g)} + O_{2(g)}$. However, when water is split, the equation is $2H_2O_{(l)} \rightarrow 4H^+ + 4e^- ...
4
votes
1answer
26 views

Powdered meal replacement vs regular meal

Can a person live with this alternative nutrition? Of course, assuming that eating pleasure is assumed the same. The nutrients that contain are far better than average meal a person eats the majority ...
2
votes
0answers
19 views

The ring formation of ringworm

I know ringworm is caused by a fungus on the skin, nails or scalp but what causes the rash to form as a ring instead of like a normal spread out rash?
1
vote
0answers
11 views

Surface Power Density of Fluorescing Reaction

I am looking to find out what is the ballpark power density of a fluorescing PCR reaction using a SYBR Green or Taq Man dye might be. Is it on the order of $E_e=1mW/cm^2$, less or more? Any help of ...
-1
votes
0answers
15 views

ncbi+ build blast_demo app [on hold]

Has anyone recently been building the ncbi+ toolkit? My question is: What is the minimum required configuration to build blast_demo app? Because I have tried to make only the core lib and that takes ...
0
votes
1answer
18 views

Energy consumption of a resting synapse

What is the energy penalty of maintaining rarely used synapse? I'm wondering if forgetting is cheaper than remembering unnecessary details.
-1
votes
0answers
27 views

How do disinfectant sprays work? Difference with antibiotics [on hold]

Most disinfectants say they kill 99.9% of germs, I'm wondering how do they do that exactly. Also, there are bacteria resistant to the most powerful antibiotics. Would a disinfectant kill them anyway ...
0
votes
0answers
14 views

Do aerobic bacteria precipitate in a liquid culture?

In most books aerobic bacteria is shown growing only at the top of a static liquid culture tube? Shouldn't have precipitated instead of floating on the surface?
5
votes
1answer
27 views

Magnetic-activated cell sorting vs. FACS

When sorting cell populations it is possible to use either magnetic-activated cell sorting or fluorescence-activated cell-sorting (FACS). I am wondering when you would choose either technique and what ...
2
votes
1answer
55 views

Is [O2] different in a 5 mL liquid media?

Is there a drastic difference between top and bottom of the tube, with no stirring?
0
votes
1answer
30 views

Do “non-human” animal like cat, dog, bird or fish think about future while sleeping? [on hold]

I don't think "non-human" animal like cat, dog, bird or fish think about future while sleeping. I think when sleeping, the "non-human" animal will feel rather think about anything. I think when ...
3
votes
1answer
21 views

Decreasing Solubility as Solvent Moves Higher in Paper Chromatography

In paper chromatography, as the mobile phase (I used 1:9 acetone/petroleum ether) climbs higher and higher, will the solubility of the solutes decrease as the solvent moves higher? I speak mostly ...
0
votes
0answers
43 views

Does ale give less of a hangover than a lager?

I got into an argument surrounding beer type and hangover. Apparently there is a opinion that ales give you less hangover than lagers do (considering same alcohol content consumed). My understanding ...
1
vote
1answer
43 views

Does breathing air containing 3% carbon dioxide gives you a headache?

As far as I know, breathing air containing relatively high levels of CO2 may get you a headache. I also know that CO2 level in the fruit bodies of peppers can reach levels as high as 3% at certain ...
2
votes
1answer
20 views

How do I make conclusions from the autoradiograph of a Southern blot?

Here's another question taken from "Concepts of Genetics," Klug et al (10ed), revolving around a paternity test. PCR and a Southern blot were carried out in order to determine whether 3 chimpanzees ...
5
votes
2answers
30 views

Comparative Genomics

Are orthologs and paralogs examples of conserved genes? Orthologs are the genes or DNA that is present in 2 different species, having once been present in a common ancestor. It comes about by a ...
2
votes
2answers
53 views

Difference between facilitated diffusion and secondary active transport in cells

Specifically, what is the difference between facilitated diffusion carrier processes (passive transport) and secondary active transport co-transport processes (active transport)? They seem to be the ...
4
votes
2answers
237 views

Help me identify this spider from my garden

Found this in my garden today in Sydney, Australia (specifically Lane Cove). Can you tell me what it is?
1
vote
0answers
6 views

variance in zygotic gene expression across species

I found this review on the Maternal-to-Zygotic transition (MZT), describing how developmental control switches from maternally deposited RNAs to zygotic expression. I was struck by figure 1, and the ...
2
votes
1answer
23 views

How is instinct carried from one generation to another?

How can non-structural information, specifically instinct (a fixed pattern of behavior that an organism reverts to as a response to certain stimuli), be passed on from generation to generation (such ...
7
votes
1answer
50 views

What determines the spiral direction of plants?

Some plants and vines spiral clockwise as they go along (right direction) and some spiral anticlockwise (left direction). What determines which direction they spiral along? At first I believed it to ...
0
votes
1answer
21 views

A non human adaptive behaviour with a spandrel

Is there any adaptive behaviour in non humans which, when it is functioning as it was selected to do, creates a spandrel behaviour? In evolutionary biology, a spandrel is a phenotypic ...
2
votes
0answers
9 views

Biofilm microtiter experimental design

We sequenced RNA using RNA-seq from biofilm (attached to bottom) and planktonic growing bacteria (supernatant) in 3 mL microtiter plates. I'm not sure how is possible to obtain planktonic cells ...

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