0
votes
0answers
20 views

Hybridization of an Indo-Aryan ethnic group and a Tibeto-Burmese ethnic group

The state in which I reside houses these two distinct ethnic groups. Physical Traits of the Indo-Aryan group Height:Medium Eyes:does not posses epicanthic fold Nasal bones:is not flat and broad ...
0
votes
0answers
7 views

Obout oxygen presence in krebs cycle [duplicate]

Q- If oxygen is not utilized in the cycle then why it is present in the Krebs Cycle?
1
vote
0answers
15 views

What is this insect found commonly in coastal India? [duplicate]

I have lived in two cities on the western coast of India and I have seen quite a few of these insects(?) in both places. It basically has an outer cocoon of sorts, which looks a lot like dirty ...
-1
votes
0answers
8 views

After how many generations our family resemblance change altogether? [closed]

I observe that one grandchild might be more different from his grandfather than his father, if so, obv he will be having more differences from his grand grand father.. After how many generations or ...
4
votes
1answer
33 views

Do animals' facial expressions have similar meanings to humans'?

In the following pictures, the dog seems to be smiling to the camera. People staring at these picture also tend to feel comfortable and relaxed, presumably because they think it's very happy playing ...
0
votes
0answers
15 views

Post-translation modifications of proteins that are regulated in breast cancer [closed]

I have a set of proteins which are up regulated in breast cancer. I was asked to find post-translational modifications (PTMs) for them, which I found based on databases but my question is that, what ...
0
votes
1answer
49 views

Examples of biological turing machines [closed]

Are there any examples of biological Turing machines? And what can they do?
0
votes
1answer
52 views

Beta Sheets vs Alpha Helix - Strength

Is there a hard and fast rule of which one is stronger than the other, or does it depend on their context in a protein?
1
vote
3answers
69 views

What is the actual storage form of energy in muscles? ATP or Glycogen?

I was asked this question in my latest exam. I think the answer is Glycogen because ATP doesn't store energy for a long time so it isn't the ACTUAL storage of energy. Some classmates argue that in ...
0
votes
1answer
57 views

What percentage of a Neanderthal's DNA could be in a Denisovan?

My questions arose from an online course video at 3:11-19 The professor mentioned that the Neanderthals were inbred with their cousins breeding together but the Denisovans were very diverse , with 70%...
0
votes
0answers
38 views

Can defibrillation (cardiac arrest treatment) be done with a vehicle spark plug?

Can successful defibrillation (restarting the heart after cardiac arrest) be done with a spark plug from a vehicle (possibly offroad vehicle)? Is it POSSIBLE for this to work? Let's say you are stuck ...
5
votes
2answers
53 views

Insect making continuous sound in summers

In deciduous to tropical-deciduous forests and residential places with such vegetation I have found this insect to make continuous sounds all through the day (even in nights sometimes) during the ...
0
votes
0answers
14 views

What are extracellular matrix pathways?

I was reading a research paper dealing with acute myeloid leukemia and the term "extracellular matrix pathway" came up. What does it mean? I found literature on extracellular matrix, but I'm not sure ...
-3
votes
0answers
23 views

why did people in Africa evolve to have such a high fertility rate? [closed]

According to http://interesting-africa-facts.com/Africa-People/Overpopulation-in-Africa.html, maybe they always did but it wasn't until the infant mortality rate dropped that the population stated ...
0
votes
1answer
23 views

Are antibiotic-resistant bacteria necessarily less virulent than their original strain?

In the absence of antibiotic treatment, is there a reduction in the average severity of disease caused by resistant strains of pathogenic bacteria compared to wild-type ones? I would assume that ...
1
vote
1answer
19 views

How to calculate apparent diffusion coefficient (ADC) with example?

Can someone give an example calculation for the apparent diffusion coefficient (ADC)? There appears to be multiple ways that this can be calculated, e.g. as discussed here: http://www.ncbi.nlm.nih....
0
votes
0answers
16 views

Is genetic engineering in the eye possible? [closed]

Is it possible for iodopsin (photopsin) in cone cells to be genetically engineered to become rhodopsin so that retinal convergence could take place and therefore give some degree of colour in low ...
-2
votes
1answer
64 views

What was the precursor of testosterone? [closed]

Testosterone evolved about 500 million years ago (says 8fact.com). What was the precursor of testosterone (if any)? If possible, what caused the 'precursor' to evolve?
-1
votes
0answers
11 views

To what extent a human eye can see in terms of angle? [closed]

what is the maximum angle (wideness) an human eye is capable of focusing the objects around without rotating the eyeball or the head??
-1
votes
1answer
41 views

How does imatinib recognize the constitutively active Abl-BCR even though it binds to the inactive conformation?

In chronic myelogenous leukemia (CML) ABL-BCR is constitutively active (always on) and it can be inhibited by imatinib and dasatinib. A study says that imatinib binds to the inactivated state of the (...
-1
votes
1answer
22 views

How are unnatural amino acids modelled using insilico tools?

When the structure of an unknown protein containing amino acids other than the 20 known natural amino acids is modelled which method is primarily used in bioinformatics to solve the structure? what is ...
0
votes
0answers
17 views

Would rolling oranges keep them from going bad? [closed]

If I buy several oranges and don't eat them all right away, within a few days one of them will invariably grow a big moldy spot, and for whatever reason, it always happens on the bottom of the orange--...
0
votes
2answers
28 views

Energy coupling between two spontaneous reactions?

This diagram describes energy coupling between a nonspontaneous reaction (the formation of glutamine from glutamic acid and ammonia) and a spontaneous reaction (the hydrolysis of ATP). I can see that ...
0
votes
0answers
12 views

optimization of density gradient centrifugation

I'm trying to isolate a ~320kD protein (in oligomeric form) using density gradient ultra centrifugation technique. Can any one tell me that what gradient (sucrose or glycerol or trehalose or etc) I ...
1
vote
1answer
62 views

How do heredity and regression to the mean work with respect to intelligence?

I am trying to understand the heredity of intelligence between generations in general, and how regression to the mean works in detail in particular. The answer I'm looking for should preferably answer ...
-1
votes
0answers
38 views

TDCS - safe limit? [closed]

What is the safe limit for Trans-cranial Direct Current Stimulation (TDCS)? From what little I have read, people typically do 2 times a day, each time 20 to 30 minutes at the same place. So... is it ...
1
vote
2answers
52 views

What´s the origin of junk DNA?

Most eukaryotes posses a certain amount of junk DNA in their cell nuclei. What is (are) the origin(s) of this junk DNA, And is it realy junk (superfluous)?
0
votes
0answers
28 views

How do I know if the tRNA gene is under purifying selection from looking at a sequence dataset?

I'm having trouble figuring out how to tell if a tRNA gene is under purifying selection, just by looking at its sequence dataset. Such as this one:
0
votes
0answers
17 views

How to Determine Sufficient Time for Melanoma Survivor to Be Considered Low Risk?

Regarding melanoma, how do we determine the minimum amount of time that a patient is disease free for them to be considered low risk? We are attempting to do survival analysis on RNASeq data from ...
0
votes
0answers
24 views

Is hair colour and eye colour explained by two independent loci? [closed]

Eye and hair colour of 5523 people Eye colour______Hair Colour brown___________black_______1705 Brown___________blonde______3267 violet____________black_______200 ...
-4
votes
0answers
29 views

The purpose of mosquitoes [closed]

I've thought a real long period of time about the fact if mosquitoes do have a purpose for human beings in general. I just can't come up with a positive purpose that mosquitoes have on us only some ...
-1
votes
1answer
44 views

Difference between neural facilitation and summation [closed]

Can somebody please explain to me what is the difference between facilitation and summation?
-1
votes
0answers
16 views

Would an ecosystem of right handed living organisms be able to form a parallel ecosystem here on Earth? [closed]

Efforts are under way to create the mirror-image version of ordinary life. While it seems that such organisms should be immune from attacks by ordinary lifeforms, the biochemistry of one doesn't seem ...
-1
votes
1answer
62 views

Why water is cold while ice is hot [closed]

Please read my question carefully. It may appear off-topic but its not. There is a word commonly used here in Pakistan: Taaseer (literal meanings: Effect) to ...
1
vote
1answer
12 views

How do molecules signal pre synaptic neurons to activate? [closed]

How do molecules signal pre synaptic neurons to activate? and also is it more the structure or the elements in the molecule that allows it to activate the neuron also how do molecules bind to ...
0
votes
0answers
13 views

Why is your taste affected due to sinuses?

I heard someone say "My sinuses are acting up, I cant taste the food." I dont think the person is lying, they probably believe this but I'm having trouble seeing how the sinuses would affect the taste ...
4
votes
1answer
32 views

Need Help Identifying this Critter (Insect?)

This creature is hanging out on my kitchen window. I live in Western Maryland, US, near the Potomac River. The creature is about 3 inches long (measured from tip of mandibles to tip of tail). Does ...
1
vote
0answers
16 views

Is Valerian diuretic or antidiuretic

Hello i wanted to take valerian to calm me down on stress situations, and also using it as an antidiuretic, but i have seen forums where people say it acts as an diuretic, and others where they said ...
0
votes
0answers
14 views

What is the difference between desert and migratory locust?

I know both are species of short horned grasshoppers and belongs to the orthoptera order, Acrididae family and so on. But what is the difference between desert and migratory locust? How do we ...
0
votes
0answers
18 views

Skip estimateDispersions() DESeq2 [closed]

In my experimental design, I have 20 libraries, coming from 20 F2 interspecific hybrids, meaning every genotype is different. 10 individuals are tolerant and the other 10 are sensitive to a specific ...
0
votes
1answer
31 views

What is the meaning of a reported OD600 value?

I can't find a reference that explains what, for example, OD600 = 0.1 means. For example, Wikipedia states OD600 is an abbreviation indicating the absorbance, or optical density, of a sample ...
0
votes
2answers
44 views

DNA replication in E.coli

What is the difference between replication and to divide? My A level bio book says that it takes 20 min for E.coli to divide and in next page it's written that E.coli completes replication within ...
3
votes
3answers
141 views

How is the size of a gene defined?

Is there an agreed definition as to how many nucleic acid bases constitute a gene? If not, why not? I'm not sure I understand how the exact sizes of genes are defined.
-2
votes
1answer
59 views

What are the positive and negative impacts of selective breeding in domestic dogs? [closed]

Humans have been selectively breeding dogs for a long time. Why do we do it? What are the positive and negative impacts of selective breeding and why do they occur? I am writing an independent ...
3
votes
0answers
56 views

In vivo delivery of ssDNA

I am looking for a system with which I can deliver (large quantities of) ssDNA in vivo (say in mice). I do not know whether it is of importance but the 5' end of the ssDNA fragments are assumed to be ...
-1
votes
0answers
27 views

Where does transamination and deamination take place?

The only information I know is about deamination,it occurs in the liver and kidney. But in which part of the cell does deamination occur? To which tissues is transsamination specific to and in which ...
3
votes
1answer
35 views

Why does migration distance depend on log of molecular weight in SDS-PAGE?

I really want to know why in the result of SDS PAGE, log of molecular weight(MW) and migration distance (distance from the loading well) have a linear relationship. Why is it log(MW) instead of MW? ...

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