0
votes
1answer
9 views

RNAs arising from intergenic regions

Which type of RNA molecule is coded for in intergenic regions? I think it must be a non-coding RNA but I'm unsure which type.
2
votes
0answers
7 views

How graphic images leads to nausea?

How graphic images leads to nausea? yesterday my friend visited shock sites(a website), he said that he got nausea sensation within seconds after viewing graphic images, but i don't understand ...
0
votes
0answers
7 views

Meta-analysis for Water filtering systems?

I am trying to find meta-analysis and US government's official websites about water filtering and recommendations. The selection of the system is dependent on the quality of the water. Some systems ...
0
votes
1answer
12 views

Why is deficiency of thiamin characterized by brain malfunction

Why is deficiency of thiamin characterized by brain malfunction.
1
vote
2answers
27 views

How can natural selection occur at species level whilst not occuring at the individual level?

The chapter by Douglas Futuyma in 'Evolution' (Losos et al 2013, Princeton) states that natural selection can occur at the species level. Futuyma states that if natural selection occurs at the species ...
1
vote
2answers
32 views

Resilience to the neurotoxins of Indian King Cobra

I read on Wikipedia about this: King Cobra - Wikipedia In Thailand, a concoction of alcohol and the ground root of turmeric is ingested, which has been clinically shown to create a strong ...
0
votes
1answer
23 views

Crude oil contamination hazard

I'm not sure if this is physics, biology or chemistry related so I will start here. I'm from a city (Baku, Azerbaijan) where crude oil is known to be extracted since ancient times. Oil is no longer ...
0
votes
0answers
21 views

why we cant feel change in blood levels in our own body? [on hold]

why we cant feel blood levels in our own body? we feel thirsty, when our body have reduction in water levels, so why can't we feel changes in blood levels? even our body contains more blood than ...
2
votes
1answer
59 views

In males, why it is difficult to control orgasm?

In males, why it is difficult to control orgasm? we can control urine for few minutes, but we can't control orgasm at least for few seconds? if both are discharging though same organ(penis)?
0
votes
1answer
19 views

MHC-I presentation during infection

Which cell type cannot process and present antigen peptide in association with MHC-I when it is infected?
0
votes
1answer
21 views

Why do the ants eat cockroaches' head first?

Sometimes I see in my house there are flipped cockroaches whose lose their heads. Only my cat and ants want to play/eat them, and I don't think my cat would like to pull their heads out. Do you have ...
3
votes
2answers
61 views

Can an organism process H₂O into H₂O₂?

In an answer to a recent question on Worldbuilding, I suggested that an organism convert $H_2O$ into $H_2O_2$. I suggested a few processes that yielded the desired final result ($2H_2O \rightarrow ...
1
vote
1answer
19 views

Sensory adaptation regarding smell and hearing

Imagine the scenario. My friend and I are playing a game of chess near a highway. Initially, I notice the sound of the highway. While I'm playing chess, however, I do not notice it. After the game my ...
1
vote
0answers
15 views

Is Zeiss Primo Start microscope worth the price for student use?

I study physics but I have got interested about biology too. Surfing around the web, I have found out that in buying microscopes one needs to decide between the cheaper no-name brands vs. the four big ...
0
votes
0answers
14 views

How to download PPI in NCBI [on hold]

I want to a protein protein interaction for analysis with R programming. output format : Excel or TxT or FASTA R package : No important, myself find. You tell me that how to download a PPI from ...
0
votes
0answers
12 views

Bacterial/microbial metabolism of sucrose in fruit juices

While taking out the recycling this morning, I noticed that my old orange juice carton seemed to be inflated. Opening the cap relieved a lot of pressure built up inside the carton. I'm thinking that ...
1
vote
0answers
25 views

plot the nucleosome distance to TSS [on hold]

I am new to bioinformatics and python,Now I have downloaded nucleosome-seq data and TSS-seq(which also names CAGE) data,so I try to draw a picture like this: ...
1
vote
2answers
35 views

Do “Giraffe Weevil” males build Nests

I had came across an insect near my backyard in India(Kerala). I haven't seen this one before and I searched web to find out what insect is this and found its image which saying its a "Giraffe ...
6
votes
1answer
1k views

Does one parent transmit more DNA to the offspring than the other one?

Does one parent transmit more DNA to the offspring than the other one? Or do both parents always transmit the same amount of genetic material to their offspring? In other words, can a baby be ...
6
votes
1answer
78 views

Is it biologically possible for an adult's eye color to change?

Can it be that the adult eye can change color? Specifically my question is about a unilateral color change, such that the color of one eye remains constant, while the other changes color over time. ...
0
votes
0answers
19 views

T-cells Question

T-cells are important for efficient vaccination since they have: A. T-cell receptor (TCR) B. CD4+ C. CD8+ D. Memory My gut is telling me it's A since the TCR would recognize the antigens but I ...
0
votes
1answer
26 views

Exact location of E. coli in human body

E. coli lives in lower intestine. But exactly where can we find E. coli, and where is there none (or a really small amount) of it? I need the exact names of parts of the lower intestine where we can ...
0
votes
1answer
8 views

Ephedrine or pseudoephedrine indirectly central alpha2 mimetic?

I started to think this problem by first thinking if the alpha2 mimetism is possible in either case. It seems to be indirectly in either one. Ephedrine seems to have more prominent effect in CNS. ...
0
votes
1answer
15 views

Is Norepinephrine beta2 adrenomimetic?

I know that it has alpha1, alpha2 and beta1 effects. It has beta2 receptor where epinephrine can effect. However, to say that it is beta adrenomimetic, I am not sure. That is ligand binding beta2 ...
6
votes
1answer
475 views

Why does A pair with T and G with C?

DNA is made up of pairs on AT and GC base pairs. I know that A only pairs with T and G only with C. Does this apply just to humans, or are there animals where T will pair with G? Also, surely there ...
-2
votes
0answers
32 views

Are there 23 pairs of chromosomes present in each cell, or in the entire human body? [on hold]

There are 23 pairs of chromosomes. Are these present in each cell, or are there just 23 pairs present in the entire human body?
0
votes
0answers
8 views

How can succinylcholine cause myorelaxation?

I first thought that this is because of prolonged depolarisations. However, I am not sure anymore, because after reading PubChem, the only possible pathways are are Choline agonist. So I would say ...
1
vote
2answers
18 views

Is there any way to make pymol find the closest distance between RESIDUES?

This seems like an obvious utility, but I can only make it find the closest distance between ATOMS, which makes a big mess on the screen.
0
votes
0answers
13 views

Is one metabolomic database more searchable than any other? [on hold]

What makes one metabolomic databases eg. HMDB more search worthy than any other? Is it possible to have a general criteria since there is not one search reason? Is there any that have more user ...
0
votes
0answers
9 views

Milder hyperlipidemia in hypercholesterolemia? [on hold]

My professor suggested that in polygenic hypercholesterolemia, the overall lipid level does not increase so much as in LDL receptor defect patients. She also mentioned something about the dilution ...
-1
votes
2answers
30 views

Bird identification [on hold]

I got a statuette of a bird, carved of semi-precious minerals, but with its tail broken off. I'd like to restore it, rebuild the tail, but I'd first need to know how it should look like. Can you help ...
-7
votes
0answers
39 views

Why can we see so many different types of mushrooms if we assume that they arrived to Earth on a comet? [on hold]

Why can we see so many different types of mushrooms if we assume that they arrived to Earth on a comet? I mean they don't have to have bright colors to attract bees or birds for their reproduction. ...
0
votes
0answers
9 views

How much mmol/L of glucose does my dog extract from his meal into his blood?(at least roughly) [on hold]

In the context of insulin dependent diabetes(assume there is no glucose suppression in the blood at all, not even from the kidneys). I can find out the content of carbohydrate, but, I don't know what ...
0
votes
0answers
7 views

Function of Vermiform Appendix [duplicate]

Why is the Vermiform Appendix(a finger-like projection at the end of caecum of large intestine) called a vestigial organ even though it acts like a lymphoid organ?
2
votes
1answer
15 views

Action of Ebola Viruses

This video suggests that the first cell to be the victim of viral infection of ebola is the dendritic cell which acts as the leader of immune system cells.But I am unable to understand how the ...
0
votes
0answers
13 views

Substrate specificities of GPPS, FPPS and GGPPS (isoprenoid biosynthesis enzymes)

I have some questions related to isoprenoid synthesis enzymes. Does Geranylgeranyl pyrophosphate synthase (GGPPS) contribute in Geranyl-Pyrophosphate (GPP), Farnesyl pyrophosphate (FPP) and ...
1
vote
0answers
19 views

How to compare a camera and an eye

How could I compare what a normal eye can see to a camera lens? I just went through a very comprehensive article @ CambridgeInColor, but I'm still not really clear. When I take a picture with a SLR ...
1
vote
1answer
20 views

Ants eating bark

Was out walking in the park today, came across a tree, and me being me I thought "Hey lets try climbing this thing for fun." But something strange struck me, the tree was completely devoid, as in ...
0
votes
0answers
14 views

What type of bacterial colony is this?

I am having trouble identifying the microorganism in the picture. I think the shape is rhizobium and probably a bacillus, but I can't narrow it down from here. It was grown on agar plate with ...
3
votes
1answer
28 views

Looking for a gene in my raw genetic data. What are the possible causes for this?

Obviously, I barely know what I am talking about. But I want to find the "MUC5B promoter polymorphism rs35705950" in my RAW genetic data from 23andMe. (see this ...
2
votes
0answers
25 views

ECG of heart transplant patients

I am studying ECGs of heart transplant patients. The difficult thing is that there is so little available data publicly. I must apply for data in my universities. It would be also great if ...
3
votes
1answer
28 views

Why cytotoxic T cells don't kill dendritic cells when they present antigen?

When a cytotoxic T cell (CTL) recognizes a peptide presented in the MHC-1 of a dendritic cell (APC), why it doesn't kill this cell? I know that initially, in the lymph node, the T cell is ...
0
votes
0answers
18 views

How is the loss of blood estimated after trauma? [duplicate]

How do medical professionals measure/estimate/guess the loss of blood after an accident?
0
votes
1answer
22 views

why is heart failure treated as more critical than kidney failure?

The kidney filters blood whereas heart pumps the blood. Filtering blood is important. Therefor why is heart failure treated as more critical than kidney failure?
2
votes
2answers
97 views

Like other animals, why humans don't have species & breeds?

Like other animals, why don't humans have species & breeds ? Even my pet dog is one type of breed, but we (humans) lack breeds & species? What is the main reason?
1
vote
1answer
29 views

Are bees positively phototropic

One day I had found some bees have come around the light source like other positively photo tropic insects, I hadn't seen any bees coming over light before. I think bees are diurnal and they don't ...
3
votes
2answers
37 views

Any benefit to low dose radiation?

Is there any survival benefit in humans that can be obtained from chronic exposure to low dose radiation, or is any dose of radiation a potential harm? Has any research been done into this?
0
votes
0answers
18 views

Is it true that there is a finality in nature? [closed]

Every biologic thing having its own purpose; for example a carnivore flower that attracts a fly to eat it. Or a flower having seeds that spread with the wind. Or the liquid in which the foetus float ...
0
votes
0answers
80 views

Tricky DNA and RNA question [closed]

Information storage and transfer are the critical functions of nucleic acids. Which of the following is/are important characteristics of the sugar phosphodiester ester linkages in the backbone of ...
0
votes
0answers
19 views

Is natural absense of appendix result of the internal evolution? [closed]

If we say that living organism is file of cells what absorbs nutrients, develops and responds to stimuli, we can say that any organ is a living organism - and if the organ has no function, it will not ...

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