0
votes
0answers
3 views

Why balloon affects ears in close proximity?

I noticed that when I bring a balloon close to my right ear (anywhere between 5 to 20cm) I feel pressure in my ear and my hearing weakens. There is no effect on the left ear. I tested this with ...
1
vote
1answer
6 views

What is the reason for fear induced defecation?

I started to handle mice for my job and noticed that they tend to defecate and/or urinate when they are scared. The fear is induced by me, because I need a long time (due to inexperience) to grab the ...
0
votes
0answers
3 views

Do elephants get thorns out of each other's skin?

I have watched Wild Kratts Elephant in the Room several times where a baby elephant named Thornsley has a big thorn in his foot and is nowhere near his mom. This along with herd members helping each ...
0
votes
0answers
7 views

Cytokine screening

Measuring IL-6 production by NFKB stimulation using IL-1a and TNF-a. Il-1 produces a stronger degradation of IKBa (inhibitor of NFKB). I've done this using West Blot. The production of IL-6 is also ...
0
votes
0answers
10 views

What does the centromere come from?

The sister chromatids are held together by centromeres during the M-phase of cell division. But where does it come from?
0
votes
0answers
3 views

How to Download the broadpeak files from the encode chip-seq experiment matrix?

I have tried the SqlDatabase of Encode opened it trough R ,i have tried other packages in R, i have tried the ENCODExplorer package but none of them seems to do what i want. I have an app that asks ...
-1
votes
1answer
42 views

Am I a lobe-finned fish?

I really wish this question only contained the title and tags, but the website forces me to write some text.
2
votes
1answer
20 views

How did dolpins acquire the dorsal fin?

I had been thinking bout atavism when I saw a picture of a dolphin. I had seen it before, but suddenly the dorsal fin startled me. How did this dorsal fin evolve, especially, is it some atavism from ...
3
votes
1answer
16 views

How does a seed 'know' when to start growing?

I'm sure there are many different ways for seeds of different species, but what is a general rule? Is it some kind of ideal temperature & wetness that triggers a chemical reaction?
-1
votes
0answers
44 views

Could some paedophilic attraction have had adaptive value in the past? [on hold]

Could it have been adaptive for men in ancestral times to be attracted to girls before puberty?
0
votes
0answers
18 views

Prediction of Protein Secondary structure

To predict secondary structure of proteins three types of Algorithms are used Ab initio, homology based and neural networks. Among these neural networks prove to be more accurate and give good results ...
0
votes
0answers
26 views

Does sickle cell anaemia protect a victim against malaria? [duplicate]

My biology textbook says that a person with sickle cell anaemia is less prone to malaria. Why is that so? I'm guessing that its because the malarial parasite needs human RBCs for completing its life ...
0
votes
1answer
40 views

Why is it not advisable for humans to drink distilled water? [duplicate]

Distilled water is pure and it does not contain any minerals, so may not be advisable for drinking. Although laboratory made distilled water is completely pure, industry made water may still contain ...
1
vote
0answers
13 views

What type of point mutation and chromosomal mutation cause Albinism in humans?

First of all, I know that OCA1 (Oculocutaneous Albinism Type 1) is autosomal recessive which means that both parents-who are unaffected-have to pass down one copy of a mutated gene in order to ...
1
vote
0answers
15 views

Why are there different species of bacteria?

The usual (high school or intro to bio) explanation for diversification of species comes from multicellular, usually sexually reproducing organisms, and seems to be closely tied to the biological ...
0
votes
0answers
21 views

What good are mosquitos? [duplicate]

Mosquitoes have been getting a bad press lately, for transmitting malaria, dengue, zika and numerous other diseases. Some reputable scientists are now talking seriously about extinguishing (making ...
0
votes
1answer
24 views

How prevalent is sexual dimorphism?

I'm writing a lab on sexual dimorphism (sex differences that don't directly affect reproduction. E.g. sperm/eggs, vagina/penis aren't dimorphisms under the definition I'm working with). I want to ...
-2
votes
0answers
26 views

How come there are animals (like lizards) that can regrow their tail, but no animals can regrow a penis? [on hold]

It seems like the penis is the more important appendage for evolutionary purposes, doesn't it? In which case, why are there no animals that can regrow a penis (or is there?)? I understand that often ...
0
votes
0answers
12 views

Is eye colour of Drosophila a polygenic trait or an X-linked trait?

I came across the trait and there are both types of references showing that it is a X-linked trait and polygenic trait. What is the correct one?
3
votes
1answer
26 views

Is asteraceae and compositae the same family?

The problem is sunflower. Although it's mentioned it belongs to family asteraceae it is also a composite flower. So it belongs to asteraceae or compositae or both? And do they refer to the same family ...
0
votes
1answer
37 views

How are 6 “fixed” CO2 molecules joined toegther as glucose?

When we study calvin cycle, we study it with 6 molecules so as to form 1 glucose in a single cycle as: 6 RuBP + 6 CO2 => 12 3-PGAL => 1 Glucose + 6 RuMP But if we look deep, then we know that the ...
-1
votes
1answer
34 views

What is the probability of genetic reincarnation? [on hold]

Parents pass on 23 chromosomes to their children, with a 50/50 chance for each chromosome. Considering that people of a families lived over millennia in the same region the abundance of some ...
1
vote
0answers
8 views

Function of NEZHA gene

What is the function of NEZHA? What effect does it have on microtubules and PLEKHA7? What happens after it has been knocked down?
1
vote
0answers
10 views

Is the male satin bowerbird's bower-building behavior innate?

The male satin bowerbird builds a stick structure, known as a bower (distinct from a nest), where courtship and mating take place. They curiously decorate their bowers using blue or shiny objects. ...
0
votes
0answers
8 views

Are receptors integral membrane proteins or peripheral membrane proteins?

In tegral membranes serve as transporters. Peripheral protiens serve as cell adhesion molecules, antigens and enzymes. So what about receptors? Which protiens carry out the duty of receptors?
1
vote
0answers
20 views

Brain wave and motor movement correlation

I am trying to better understand which brain waves are generated when the motor system (arms, legs, muscles of any kind) are activated. According to Wikipedia, several types (Beta, Gamma, Mu) appear ...
3
votes
1answer
28 views

What is this blue-green bioluminescent invertebrate I saw at Aquarium of the Pacific?

I took this picture of an animal in the bioluminescent section of Aquarium of the Pacific in Long Beach, California, but I neglected to write down what it was. I've searched the Aquarium's web site, ...
1
vote
1answer
37 views

Why does HPV Infect Squamous Epithelial Cells and Not Others?

I've seen this question about HPV and the reference therein. The link states "Human papillomavirus (HPV) is a DNA virus that presents tropism for epithelial cells, causing infections of the skin and ...
0
votes
0answers
11 views

Best medication for chicken pox? [migrated]

Which treatment, homeopathic or allopathic cures chicken pox faster with less pain ?
0
votes
0answers
24 views

University genetics human pedigree problem. Check my answers?

The pedigree below is of a rare hereditary disease of the nervous system: a. Is it recessive or dominant? Explain. ...
0
votes
1answer
75 views

What's the mechanism or structure responsible for new species genetic code generation?

I always had this question in mind. I think, If humans find answer to it then we can trigger the next evolution of human specie. What is the mechanism or structure responsible for evolution ? I don't ...
2
votes
0answers
37 views

The evolution of poor eyesight: is there weaker selection in modern humans?

Short question: Poor eyesight might have been a major impediment to survival and reproduction in early man (say, 100,000 years ago), but, with the advent of agriculture, major cultural changes, and ...
0
votes
1answer
64 views

Why it seems that principles of chemistry are not being applied in this biochemical process? [on hold]

According to an answer in this question, my concept used below does not apply: In the non-cyclic photophosphorylation, consider splitting of two water molecules, then 4 e- (electrons) and 4 H+ ...
-1
votes
1answer
39 views

Why plants and animals are so different even though they come from the same ancestors?

All the documentaries I have watched, books I have read so far on the starting of life on earth only talk about animals. The very first life form on earth was bacteria. Then evolution took us this ...
0
votes
0answers
23 views

What’s wrong with a shriveled cell?

When you place a cell into a hypotonic solution, water rushes into it and it bursts/lyses. Thus, the cell dies. However, when you place a cell into a hypertonic solution, water rushes out of it and ...
3
votes
1answer
27 views

Why eyes don't get heated while converging sunlight into retina?

It is a common observation that a magnifying glass when used to converge rays of sun to a fine point in paper, the paper burns due to intense heat. Why doesn't this happen in our eyes? Our eyes are ...
1
vote
2answers
58 views

Are human beings evolved to eat meat? [duplicate]

I know humans can cook, and prepare almost anything, but are humans specifically adapted to eat meat. One of my doubts humans are not particularly well adapted to eat meat because they lack canine ...
1
vote
1answer
10 views

Ions in Stomatal Opening Mechanism

When a stoma’s guard cells try to swell and open the stomata, they actively pump out protons outside of the cell. This causes a membrane potential, where the inside of the cell is negative with ...
3
votes
1answer
25 views

Efficacy of the 10-20 montage for EEG

I am trying to better understand the relationship between the placement of EEG electrodes and the quality of the "brainwave" signals they produce. There is the standard 10-20 system which has me ...
1
vote
1answer
101 views

Would urination continue after death?

I apologize for the very weird question >.< but for some reason I started wondering this. I also probably phrased the title incorrectly. This seems to be on-topic according to the help center, let ...
0
votes
0answers
22 views

Why lactate inhibits growth (or enhances death rate)?

Extracellular lactate tends to inhibit cellular growth or enhance cell death. This happens in the vicinity of tumors and in cell cultures. See for example this reference: Ozturk, Sadettin S., Mark ...
0
votes
1answer
23 views

Converting miRNA names

I need to convert all of my microRNA names e.g. hsa-miR-30e-5p to e.g. entrez gene IDs, ensemble IDs or another ID. Does anyone know a good ID conversion tool for microRNAs? (I managed to convert it ...
3
votes
1answer
21 views

What is the number of influenza strains occurring at a given time?

My question was initiated by reading on mock-up influenza vaccines. I understand that the manufacturer pre-prepares a certain vaccine and tries to get it tested and ready before it is actually needed, ...
2
votes
0answers
27 views

Follow-up to The Red Queen by Matt Ridley? [on hold]

I just finished reading The Red Queen: Sex and the evolution of human nature by Matt Ridley. Since this book is over 20 years old, I was wondering if more recent research made part of the book ...
4
votes
2answers
24 views

Earliest to use media after autoclaving?

I am autoclaving media to use later to inoculate yeast. How much time do I have to wait before using the media and adding the culture? Can I use it a few hours after autoclaving?
3
votes
0answers
31 views

Escaping resource limitations during tumor evolution

In their discussion of the importance of r- and K-selection on tumors, Aktipis et al. (2013; figure 3) provide the following illustration of a hypothetical cancer growth curve: In it, you can see ...
2
votes
0answers
26 views

Why do I see the world in blue when I open my eyes? [on hold]

So I was standing outside, waiting for the train. I was tired so I closed my eyes for a while. Then when I opened them, the world was a lot more blue than it normally is - why is this? I tried it a ...
0
votes
0answers
8 views

Sprouted hulless barley producing acetic acid after several days in the fridge

After soaking of naked barley for 1 day, the barly did sprout in a room-temperature environment for 3 days. After having repeated this process for several times, one can say for sure that in a ...
0
votes
0answers
30 views

What happens to the mold spores we inhale?

What happens to the mold spores we inhale? I'm guessing when we exhale, many of them are expelled back out to the environment. But given that disease can be caused by mold exposure, I'm also ...
0
votes
0answers
18 views

Can carbohydrates be peptides, nucleotides, phospholipids, or disaccharides? [on hold]

Can carbohydrates be peptides, nucleotides, phospholipids, or disaccharides? Explanation why please

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