0
votes
0answers
7 views

What happens when a genome is shorter than the other?

Say there were 2 creatures of the same species. Creature 1 has a longer genome than creature 2, it may be just a few base pairs, but what would happen when the genes were crossed to create creature 3 ...
2
votes
0answers
14 views

What is this butterfly?

The following guys (about an inch long) were seen in the Willamette Valley of Oregon in summer. When one would fly by a resting one, they'd get into a high-speed little "dogfight". What genus might ...
2
votes
0answers
49 views

Why do people die?

what is the reason people die naturally even though they have no known disease? I see people become physically weak at times they get old and die eventually in case they are not attacked by any known ...
1
vote
1answer
11 views

Calculation of final magnification when using a CCD camera

I'm trying to empirically calculate the approx final magnification (mag) of digital images rendered through our confocal microscope. Using a micrometer and the microscopy equipment I have, the ...
1
vote
1answer
12 views

Big cat in heat for months?

In this documentary about a lioness and a leopard the leopard is in heat for months. https://www.youtube.com/watch?v=MGqmylkOuKw Usually a big cat would be in heat for 5 days and then not in heat ...
0
votes
0answers
24 views

Will a 0.2g/mL sugar concentration cause vomiting in humans?

This infographic claims that the sugar content in a can of Coca Cola would cause vomiting if not for the phosphoric acid. In The First 10 minutes: 10 teaspoons of sugar hit your system. ...
4
votes
1answer
130 views

Approximately how long do bacteria live for?

I would like to know how many days or years do the bactiria live aproximatly.
1
vote
0answers
7 views

Why does a limb sting when it “falls asleep”?

Closely related to this question, but unanswered other than @Matthew-piziak providing a description and link that says: What is Paresthesia? Paresthesia refers to a burning or prickling sensation ...
0
votes
1answer
18 views

Merge several .ab1 sequence files into a single FASTA file?

I have several .ab1 files generated from Chromas. I want to merge all of them into a single FASTA sequence file. How can I do this in an automated way? Note that I don't have Chromas installed (the ...
0
votes
1answer
12 views

Will bark-beetles infest the Methow Valley?

What is the Methow Valley (esp. Winthrop, WA) area's susceptibility to bark beetles? Did the 2014 Carlton Complex wildfires increase the vulnerability due to the large numbers of dead, dying, and ...
2
votes
0answers
13 views

What induces parturition in humans?

I know that the release of oxytocin induces labor. But what induces the release of oxytocin? What is the trigger? And is it something that happens in the mother's body signalling that it's time to ...
0
votes
0answers
9 views

Dominant epistasis problem

An inhibitor of pigment production in onion bulb I exhibits dominant epistasis over another locus, the genotype iiRR producing red bulbs and iirr producing yellow bulbs. A pure white strain is crossed ...
0
votes
0answers
16 views

Does anyone use bootstrapping to report mass gain during experiment?

When performing an experiment to report gain of body mass in an experiment, do any of you know of a paper whose authors have used a bootstrap to improve their confidence intervals? I have a n = 10 ...
0
votes
0answers
20 views

Material with very small young's modulus [on hold]

I'm looking for a material with a Young's modulus of less than 100 Pa. I've looked at elastomers, but I haven't had any luck. Thanks for your help, I appreciate it.
1
vote
0answers
8 views

Ancestral Allele and Hapmap

I notice on dbSNP rs6352 has an ancestral allele of G - http://www.ncbi.nlm.nih.gov/SNP/snp_ref.cgi?rs=rs6352 The hapmap in humans for this allele is very rare, the homozygous version practically not ...
1
vote
0answers
17 views

Tissue grafting in marine invertebrates

I'm trying to source a procedure for a transplanting tissue in regenerating polyps. Would anyone happen to know where I can find a method of adhering to donor to host tissue? Thanks
1
vote
0answers
14 views

Diversity within and between allelic classes?

I am reading this paper. They talk about diversity within and between allelic classes. Nucleotide diversities ($π$) at each neutral site were estimated from the mean of $2 \sum z_t (1-z_t)$, over ...
1
vote
1answer
49 views

Why does the number of mutations per individuals follow a Poisson distribution?

I was reading this review. On page 11, left column, first paragraph, one can read: [..] there is a Poisson distribution of the equilibrium number of mutations per individual, if fitness effects ...
6
votes
3answers
47 views

Do any amphibians start their lives on land?

Most amphibians - at least, all the ones I know of - start their lives in the water (at least, after they hatch). They then spend time maturing before venturing onto land, where they can breed. The ...
2
votes
2answers
58 views

How does a smoker's finger or mustache get yellowish by nicotine?

Tobacco use is the leading cause of preventable death around the world.$\ce{^1}$ The stain is considered as a "tell-tale" sign for identifying smokers. Multiple materials stated that it's due to ...
0
votes
0answers
18 views

Microwave and Health [on hold]

Is it unhealthy to eat food heated in the microwave? What dangers does the microwave pose to health? Does the microwave adversely affect the chemical structure of food?
-1
votes
0answers
13 views

Reversible biological module in KEGG

Considering the kegg module M00570 The pathway looks like this: ...
2
votes
1answer
21 views

Map gene IDs to Ensembl gene ID

Forgive me if this question is too trivial. I have the gene IDs of the following type EOG6STSR2 EOG60ZRJB EOG6SBFJ2 EOG6P5KX3 EOG6B5PRW from the first ...
0
votes
0answers
9 views

What is the permeability of proteins across the hyaloid membrane of vitreous to retina?

Does anyone know of any experimental work to test the permeability of the hyaloid membrane between the vitreous humour of the eye to the retina to proteins? Currently the largest molecule I can find ...
-4
votes
2answers
83 views

Driving force for speciation for millions of species today

I would like to know if speciation really occurs (trans-speciation). Have we had enough time for millions of species? A creationist argument is that the slow changes in traits in organisms, taking ...
1
vote
1answer
27 views

Can my eyes adjust instantly to my friend's glasses?

My eyesight is pretty much perfect, but I noticed that whenever I try any of my friends glasses, from really thin to extremely thick, my eyes seem to adjust to them within seconds and let me see ...
1
vote
0answers
5 views

What are the limiting factors of pathogen population size in human populations?

I understand that one limiting factor in non-human animal populations is that increased pathogen populations decrease animal populations from killing them, which decreases the density of the animals, ...
5
votes
3answers
175 views

Is NADPH salt still usable after an hour at room temperature?

I accidentally left a delivery of NADPH Tetrasodium Salt (Santa Cruz Biotechnology) at room temperature for a little over half an hour. In addition, when I opened up the package, I briefly held the ...
0
votes
0answers
28 views

How to color a white peacock feathers with pigments?

How to color a white peacock feathers? Question that I have, is based on this article about mechanism behind peacock feather colors. http://www.webexhibits.org/causesofcolor/15C.html The main idea ...
0
votes
0answers
12 views

Obtain detailed acyclic graph from nipype [on hold]

The nipype documentation tells me that with workflow.write_graph(), I can obtain acyclic graphs like this: However, my workflows, (all containing ...
0
votes
0answers
19 views

How does the apotase function? [on hold]

We all know that apoptase is the most contributing factor for apotosis. But how does it work? Is it similar to perforation of the mitochondria?
4
votes
2answers
40 views

Why are the sex chromosomes called X and Y?

Is there a specific reason that the letter Y is used as the symbol for the male chromosome and X is used for the female chromosome?
0
votes
0answers
41 views

Endogenous PAF inhibitor in metastatic process (?)

When neoplastic cells cause a metastasis, they can create a protective coat of platelets that counterbalances immunitary response. My question is if the coat formed due to PAF can be undone by an ...
-2
votes
0answers
18 views

Is it possible for me to grow another inch? [on hold]

I'm 14 and a half, 5'6, and got my first period at 11 and a half. My mother is 5'5 and my dad's 5'10. Can I still grow another inch? If it helps I was 5'4.5 for 2 years but i grew the inch and a half ...
1
vote
0answers
12 views

What is the general mechanism behind perfusion PET imaging

I understand how tracer kinetics can be used to determine binding potential but how it can be used to detect perfusion eludes me.
2
votes
1answer
35 views

Can geckos climb a wet surface?

We know geckos can climb vertically or even upside down a surface like glass. But can they do that on wet glass?
0
votes
1answer
42 views

What is the definition of the life biologically ? [duplicate]

I want to know what is the definition of the life biologically , on the other hand , what is the definition of the death biologically ?? However, I think it is a very difficult question to answer . ...
0
votes
0answers
9 views

Colormetric assay for a phenol product?

I am working on an assay for phenol products created by a colony of bacteria. I have searched up a paper that involves gibbs reageant but the protocol is kind of unclear. Does any of you know where I ...
0
votes
0answers
25 views

How much would a Gigantopithecus be able to lift?

How much weight would a Gigantopithecus blacki be able to lift? Size comparison of G. blacki vs human: https://en.wikipedia.org/wiki/Gigantopithecus#/media/File:Gigantopithecus_v_human_v1.svg Its ...
0
votes
0answers
25 views

What's it like to be a synthetic biologist? [on hold]

I find the field of synthetic biology very interesting and I would like to know what people in the field work on. Where do you work and what do you do there? What did you study to become a synthetic ...
2
votes
0answers
31 views

What is this flower?

I was in Germany recently, and I saw again a flower that I'd only ever encountered before at Meijer Gardens. It's interesting to me because I'd never seen a flower with color variation in only the ...
4
votes
1answer
52 views

Why is the pituitary gland located in the brain?

Why is the pituitary gland located in the brain in humans, instead of elsewhere in the body? Why would this be an evolutionary beneficial adaptation?
1
vote
0answers
7 views

Two different Leucochloridium infected snails - different species?

In the last three days, I have found two snails infected by some species of Leucochloridium. I found them in my garden in the south-west of Sweden. Now I'm wondering if they are the same species or ...
4
votes
2answers
55 views

Can axons act as receptors?

In all histology books, it is stated that all sensory nerve endings (receptors) consist of dendrites that translate physical stimuli from the environment into neural signals. However, several sensory ...
1
vote
1answer
19 views

How to validate the use of an anti-virus monoclonal antibody in IHC by spiking a fresh organ with infected cultured cells?

I have assessed the specificity of a particular monoclonal antibody against a virus by immunofluorescence. I'd like to further validate it by testing it by IHC. Therefore I'd like to infect cells in ...
0
votes
0answers
14 views

What is the effect of the RNA 2' OH group on its structure and stability? [duplicate]

I've read that the 2'-hydroxyl group plays "fundamental roles" in both the structure and the function of RNA, and that it is a major difference between RNA and DNA. I would like to know more ...
3
votes
2answers
39 views

Bernoulli’s Principle in the Cardiovascular System

Below are graphs which illustrate the cross-sectional area, velocity, and fluid pressure through each vascular segment of the cardiovascular system. It makes sense that velocity and cross-sectional ...
0
votes
1answer
30 views

What is the surface area of the vitreous humour in contact with aqueous humour?

This is a question regarding the anatomy of the human eye, however for my purposes medium sized mammals should do. I am interested in estimating the surface area of the hyaloid membrane of the ...
-3
votes
0answers
30 views

What would be a Latin (Linnean) alternative for “The Talking Ape” instead of Homo Sapien (The Wise Man)? [on hold]

I would like to start a change.org petition to downgrade the name of our species from homo sapien, the wise man, to something that is more appropriate, like the talking ape. Reason: Not only is ...
1
vote
0answers
12 views

About binary fission in amoeba [on hold]

We know that amoeba reproduces by binary fission. Then does it mean that it never dies but keeps regenerating? In other words and more generally, does reproduction by fission by unicellular organisms ...

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