0
votes
0answers
6 views

Assuming height were fully controlled by genetics, what would be the concordance between monozygotic pairs?

I fully understand the differences between monozygotic and dyzogtic twin pairings, but I wondered how I could put into words the reasons why the concordance would be very high. Derived from same ...
0
votes
1answer
6 views

What is the role of TATA box in transcriptional regulation?

Now I know what is the TATA box, but I don't know what is its role in transcriptional regulation.
0
votes
0answers
1 view

Could humans metabolize gasoline?

Gasoline is mostly made of organic compounds/fats/oils. Food is also made mostly of similar organic compounds. Therefore, would humans be able to metabolize gasoline, or some of its components, for ...
0
votes
0answers
18 views

Complementing back the expression of a knockout gene

I have a human cell line (Huh7.5, hepatoma-derived) in which Ago2 gene has been knocked out by the Crispr/Cas9 technology. I checked the effective gene editing by sequencing and I also confirmed the ...
6
votes
4answers
271 views

Why do we think chronic inflammation can cause cancer?

Why do we think chronic inflammation can cause cancer? I know the pathway is not fully understood, but what makes scientists believe that inflammation causes cancer?
-5
votes
0answers
15 views

Problems in evolution theory

I have read and heard that there are more people against the Darwin's theory of evolution so why is it not simply discarded and why is there so much discussion about it?
0
votes
1answer
9 views

TRANSFAC Matrix.dat retrieve count matrix using BA or CC field

In the TRANSFAC Matrix.dat most of the motifs are given in the form of count matrix, but a few of them are given as some kind of frequency matrix. Those aren't ordinary PWMs because rows don't sum to ...
0
votes
0answers
3 views

Question about Enzyme Inhibition in relation to Aspirin

I've been trying to learn a bit more about pharmacology, so bear with my ignorance. In short, I see that aspirin (in part) works by inhibiting cycloxygenase isoenzymes and that this inhibiting is ...
0
votes
0answers
5 views

Did Cyanobacteria alone create the oxygen in Earth's atmosphere 3.5 billion years ago?

In other words, is the conveniently close-to-Californian-Universities pools of such representative of accepted theory. With the immediate follow-up question, when did the much more impressive amount ...
1
vote
0answers
2 views

What is a rough estimate of CO2 saturation for high-yield or high growth rate plants?

Naturally, plants have individual photosynthesis capacities, but it would still be interesting to get a general picture of CO2 saturation levels for some common cultures. Where lies the optimal yield, ...
0
votes
1answer
17 views

Genomic distribution of tRNAs in eukaryotes

The title says it all. I'm doing a literature search trying to see what is widely known and/or well established. I've found a couple of mentions that tRNAs are dispersed throughout the entire nuclear ...
1
vote
0answers
2 views

At which voltage will the conductance decrease due to the narrow pore in a voltage-gated potassium channel?

If you have a voltage-gated potassium channel that do not inactivate, at which voltage would you see decrease in ion conductance related to the narrow path in the pore? With that said I know that in ...
0
votes
0answers
17 views

Can sleep be replaced by chemical supliments?

If adenosine makes a person sleepy to rebuild chemicals in the brain, than is it possible to inhibit adenosine and externally produce and inject the needed chemicals?
0
votes
2answers
16 views

What kind of fish are these?

This should be pretty easy. We have a tropical fish tank, and among a few other species we have an adult pair of these guys. The female is a live-bearer, and seems to be giving birth to two young at a ...
0
votes
0answers
12 views

What is the lowest temperature an organism can survive?

It seems that reproduction isn't possible below -20°C, but bacteria can be store well below that. What is the lowest temperature a microorganism can be stored, theoretically and experimentally? I ...
1
vote
3answers
433 views

Can excessive carbonated drink consumption lead to elevated red blood cell levels?

I've recently had a blood test and the results displayed elevated levels of erythrocytes as well as hemoglobin. (As a result my hematocrit levels were also above average) At my workplace there is a ...
0
votes
1answer
10 views

iPSC in drug discovery

Pluripotent stem cells are very popular and lots of research has been conducted to use these cells as a tool for drug discovery. My question is how many years would it theoretically safe is we could ...
1
vote
2answers
104 views

Genetic mutations and new alleles

Amongst silent, nonsense and missense genetic mutations, is the latter the only one that leads to the creation of new alleles? If we define alleles as a specific form of a gene, and a gene as a ...
0
votes
1answer
31 views

Diabetes Mellitus and renal failure?

I have studied that Diabetes Mellitus leads to kidney failure and that this is because of the damage to the blood vessels (especially the blood vessels in the kidney) due to high levels of blood ...
0
votes
0answers
10 views

Are there any reliable studies about colors and emotions? [migrated]

It is rather common knowledge that black and yellow indicate danger, blue trust, green and red appetite, warm colors warmth, and cool colors cold. Please, recommend me any studies or literature about ...
7
votes
4answers
834 views

Why would lethal genes evolve?

I've been reading through 'The Selfish Gene' by Dawkins. At a few places in the book he states that incest is damaging because it would give a very high chance of lethal recessive genes becoming ...
0
votes
0answers
9 views

Tango receptors in worms

Do all parasitic Worms (parasitic platyhelminthes and nematodes) lack tango receptors? I read that the parasitic nematodes lack tango receptors on the surface of their body. Is this true for all the ...
2
votes
0answers
38 views

Guide to learning about Population biology / ecology / dynamics for a non-Biologist

I'm an applied mathematician who works in the field of feedback control systems but has been becoming interested in looking at population biology (e.g. Lotka-Volterra, Mathusian growth,etc.) from a ...
-3
votes
0answers
57 views

How can bacteria adapt to a rich in resources environment?

How can "normal" bacteria adapt to a non-extreme environment better than extremophiles in terms of foraging resources? If I could somehow eliminate all the factors like temperature, acidity and ...
1
vote
1answer
33 views

Once in the membrane, why don't proteins move?

I understand that based on their tertiary structure, intrinsic proteins have Hydrophobic [polar] R - Groups on their Surface and that they 'interact with the hydrophobic core of the cell membrane to ...
0
votes
0answers
15 views

Is it legal to send animals for near spaceflight research? [migrated]

For biology purposes, is it legal or not, like using crickets and mouse as subjects to be sent near space (Upper Stratosphere) High Altitude Balloon
1
vote
0answers
15 views

Can you replace glucose with glycerol in cell media?

In order to feed an animal cell in process called Respiration, can I replace Glucose with Glycerol? The Equation bellow: Glycerol + Oxygen -> Water + Carbon Oxide
0
votes
0answers
24 views

How to search for all human diseases associated with a inversion on chromosome 22?

Is there any way to search for all diseases that associated with inversions on chr22? I found some online research databases like OMIM and disgenet but I don't know the correct nomenclature on how to ...
0
votes
0answers
15 views

What a cell needs to survive? [on hold]

I'm looking specifically at animal cells. I'm not sure if it needs only Glucose and Oxygen for Aerobic respiration.
1
vote
2answers
26 views

What is a “homologous pair” of chromosomes in cross joining or cross over?

I never understand if the chromatids attached at the centromere is a homologous pair, or the male and female chromosomes?
0
votes
2answers
43 views

What is meant by “Expression” of Non-Coding RNA?

I was having a look at lncRNAdb and its help says: The ENCODE project gene annotation list, GENCODE, has predicted that the human genome contains 14,470 lncRNAs whereas only a small proportion of ...
5
votes
1answer
708 views

Could potatoes that have been fridged for 142 days still sprout afterwards?

I know that potatoes can still sprout even after being fridged, but could you fridge them for 142 days without them decomposing, and still be able to use them as seeds to grow more plants after that? ...
0
votes
0answers
9 views

SSR Association Mapping [on hold]

I do association mapping of SSR with the help of the bioinformatics tool "Tassel v 2.1". Can any one tell me about Ls Mean in GLM. Actually, when I click on "add Ls Mean data" for output the software ...
0
votes
0answers
36 views

Oral Fordyce spots

This is an image of a Fordyce spot I found while Googling. I don't know how to interpret this image. Is this an image of a single Fordyce spot? I mean "single" as in a single spot when viewed by the ...
1
vote
1answer
230 views

Where does female ejaculate actually originate from?

It's common knowledge that it's released via the urethra, but where does it originate? If it doesn't come from a part of the clitoris, then why is the clitoral glans called the clitoral glans? How ...
-3
votes
0answers
27 views

Can large snakes eat a person?

I was wondering if you could tell me whether it is possible for a very large snake like a python or an anaconda to eat a person, i.e., an adult or young male. If it did manage to swallow them what ...
2
votes
1answer
437 views

What is the difference between muscle fascicle and muscle bundle?

In the photo above (given by Bio teacher), the muscle bundle is shown to be as a bundle of fascicles, but in most web definitions I've seen, the two terms are used interchangeably. What is the ...
0
votes
0answers
19 views

If your atlas is out of alignment, will the rest of your spine be out as well?

I just found out about this association called Nucca. Basically, they are a chiropractic association - their whole idea is that if your atlas is out of alignment, then the rest of your spine is also ...
0
votes
0answers
16 views

Why GH is tropic and non tropic?

I was wondering why Growth Hormone (GH) has both a tropic and a non tropic effect. Maybe it does have a tropic effect because it stimulates the liver to secrete insulin-like growth factors (IGFs), but ...
10
votes
2answers
219 views

Why do mitochondria fuse together?

Contrary to all of the textbook images of mitochondria that I have seen over the years, I had just learned that the mitochondria within a cell form a dynamic branching network along microtubule ...
1
vote
1answer
19 views

How important is dead wood to the ecology of a forest and how much dead wood should remain?

I have a local 'forest management group' in my area. One of the jobs they do is to thin out the forest by removing some of the trees. They then sell the wood for firewood. I want to tell them to ...
2
votes
2answers
122 views

Extending a small fragment of DNA

Is there a way to extend a small fragment of DNA, say 150 bp, by making copies of itself and attaching each copy of that small fragment to the end of that 150 bp sequence? For example, I want a 1 ...
1
vote
1answer
22 views

Is there a difference between “Alpha Helix” and “Alpha subunit”?

In my biochemistry textbook the terms alpha helix and alpha subunit are both used. Are these two terms synonymous? For instance, hemoglobin has an alpha and beta subunit, are these the same thing as ...
8
votes
1answer
6k views

What is/are the molecular differences between HDL and LDL cholesterol?

Why exactly is HDL-cholesterol good for us and LDL-cholesterol bad for us. It has been well-established that LDL-cholesterol is associated with atherosclerosis and that HDL-cholesterol helps remove ...
2
votes
3answers
180 views

Swapping genes?

So, gene therapy is to take out a gene, correct its mutation, and put the corrected one back into the organism, right? Is it also possible to take out a gene from an organism and put in a totally ...
1
vote
1answer
20 views

T7 vs pBAD promoter strength

How do pBAD and T7 promoter strengths compare when pBAD is induced under conditions which would lead to its highest strength? Are there any papers that compare the two inducible promoter systems?
5
votes
2answers
56 views

Why upper surface of leaves is more green and shiny than the lower one?

I have properly googled this and got various answers. However, those answers do not provide an answer to the "Why" part of my question. Why is it that the upper surface of leaves is more green than ...
2
votes
1answer
51 views

Programs/software to graph biological data [on hold]

I am curious about what sort of programs people in my field of academia are using to graph their data. I am a master student in biochemistry, and have more or less only used excel (on rare occasions I ...
10
votes
1answer
124 views

Unilateral damage to vagus nerve

Context: The vagus nerves supply the neck viscera, heart, lungs and gastrointestinal tract. They join around the oesophagus to form the oesophageal plexus. Question: Would damage to one vagus nerve ...
-1
votes
0answers
17 views

peritoneal dialysis Vs Hemodialysis?

Their are basically two types of dialysis: 1.peritoneal dialysis 2.hemodialysis, My Question is Why the peritoneal dialysis needs to be carried out on everyday BUT hemodialysis is carried out on only ...

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