0
votes
0answers
12 views

Hydrophilic vs water soluble? [migrated]

Is the term 'hydrophilic' a synonym of 'water soluble' or can you have a molecule that is water insoluble but hydrophilic (or water soluble and not hydrophilic)?
0
votes
0answers
26 views

What is the term for toes that pull together with an upstep?

I fairly recently learned the term digitigrade, to describe the anatomy of a creature that stands on its toes rather than on the flat of its foot, like cats and ...
0
votes
0answers
18 views

head transplant on monkeys [on hold]

According to Wikipedia: In 2015, Italian neurosurgeon Sergio Canavero has said the procedure (head anastomosis venture) might be feasible – with improved technology and more accurate ability ...
0
votes
0answers
11 views

Gene centromere distance in yeast tetrads

I'm not getting the formula for calculating distance between a centromere and a gene in a Neurospora tetrad. Formula: Distance(gene to centromere)= 100 * 0.5(tetrads showing MII segregation)/(total ...
2
votes
0answers
34 views

When and why did humans start disliking the way we naturally smell? [closed]

Like many animals, humans produce pheromones as well as other scents from sweating, bacteria, etc. Many of these scents are used throughout the animal kingdom for mate choice, recognition of ...
1
vote
0answers
26 views

Bacteria surviving a β-lactam antibiotic

What changes can occur in the cell wall of a bacteria for it to survive a β-lactam antibiotic? I think that because a bacteria possesses peptidoglycan in its cell wall, they are β-lactam sensitive, ...
0
votes
0answers
21 views

How do deciduous trees adapt in tropical climate?

I'm planning to plant deciduous trees in my yard, i.e. maple and oaks. Normally, they grow well in cold climate region, such as Japan and Canada. But I lived in tropical climate region, Indonesia, ...
0
votes
0answers
26 views

How to detect Zika in mosquitos

I'll keep this as brief as I can. I am an engineer and I have an idea for an early detection system for the Zika virus. I want to build it. However, first I need to do research on how one detects Zika ...
0
votes
0answers
21 views

What percent of cells are lysed when I make my smoothie?

This is an entirely irreverent question, but it does concern biology. I'm a physicist by training so I like to be able to estimate order of magnitude. I made a smoothie the other day with milk, ...
4
votes
1answer
39 views

Purifying large amounts of PCR product

I have had trouble purifying very large quantities of pure PCR product. We are using these as templates for the reconstitution of nucleosomes and I require hundreds of micrograms to milligrams of ...
0
votes
0answers
22 views

Research project ideas? biotechnology, undergrad [closed]

I need to come up with an idea for a research project, biotechnology undergrad level. I've been racking my brain, but when the deadline is approaching, everything I can think of sounds stupid. 'Low ...
0
votes
1answer
29 views

How to increase pheomelanin production?

How can you increase the pheomelanin production in your body, while decreasing the eumelanin production? In other words, shifting the balance towards pheomelanin. From what I see, sulfur and cysteine ...
0
votes
0answers
38 views

Supporting evidence to research paper

I am writing a research paper about the connection between age and active memory. I have been writing about the changes/development in grey and white matter, and in particular about synaptic pruning ...
0
votes
2answers
29 views

Etymology of the term monilophyte

I would like to know the origin of the term Monilophyta. I know it's from Kenrick and Crane, but where did they get monilo-? It's not in my enormous Liddell and Scott Greek dictionary, nor is there ...
0
votes
1answer
37 views

Is it known how human sweat glands evolved?

If human descends from apes than probably we lost our hair. Perhaps in the age of homo erectus we lost our hairs and began transpiring through our skin with sweat glands. But how did these glands ...
0
votes
0answers
11 views

Why bone marrow patient and donor cannot meet? [migrated]

There's a common policy that bone marrow patient and donor aren't allowed to meet or reveal their identities. In some countries they can't meet for a year of two after the transplant. In some others ...
2
votes
1answer
50 views

Are the cells (structures) of deep sea fish different? And can they survive in shallow water?

In the deep oceans the pressure is enormous. But still there are fish living. But are the cells of them different from fish who just live at the surface of waters? For example, are the cells smaller ...
2
votes
0answers
21 views

Glucose to Glucose-6-phosphate [duplicate]

What does actually occur- ATP is hydrolysed and esterification between glucose and HPO4^2- (formed as a result of hydrolysis) take place to form Glucose-6-phosphate or nucleophilic attack of O- of ...
0
votes
0answers
51 views

How to emulate the visible light color wavelength discrimination ability of young men and women chosen to be airline pilots or astronauts? [closed]

I would like to emulate the visible light color wavelength discrimination ability of young men and women chosen to be airline pilots or astronauts. Is it possible to filter red light from 24 bit ...
2
votes
1answer
27 views

ADCs: by what mechanism are antibodies internalised [closed]

I read that ADCs (Antibody-Drug Conjugates) act by a -mab for a particular target being bonded to a cytotoxic compound. From my high-school-with-crayons knowledge of antibodies, however, one part of ...
0
votes
0answers
18 views

Amplified Fragment Lenth Polymorphism (AFLP) primers

I am trying to blast AFLP primer sequences to the genome to find the locations of the AFLP markers. However, I can't seem to find full alignments for the primers on the genome. For example, in the ...
1
vote
0answers
9 views

How does food preservatives effect salivary digestion? [closed]

What effects do common food preservatives have specifically on saliva?
3
votes
1answer
55 views

Why is AIDS not a congenital disease?

AIDS can easily pass from mother to the newborn, then why do we not consider it to be a congenital disease (or syndrome)
0
votes
0answers
25 views

Is there a special reason why ferns are so early in evolution?

Reading about plants in history it seems that ferns where already in the Devonian period (400 million years ago) growing. Probably the climate in that time was very different from now, but what made ...
-3
votes
1answer
29 views

Animals in predicting disasters..! [closed]

I have been working on a project related to how different animals help in predicting natural disasters. But google searches and news only give evidence where animals showed some signs before ...
1
vote
2answers
40 views

Explain allelic complementation at molecular level

I know that Allelic complementation is a phenomenon where two recessive loss-of-function allele generate a functional gene product by compensating each others' defect. But I don't get how do they ...
0
votes
1answer
30 views

How does a test like the Natera Panorama distinguish the child's genome from the mother?

Blood tests on an expectant mother, like the Natera Panorama, are now being used regularly to screen fetuses for chromosome abnormalities. At my wife's recent prenatal visit, she wasn't really even ...
0
votes
1answer
29 views

How does symbiogenesis explain reproduction of organelles along with the cell?

Symbiogenesis is an evolutionary theory that says that prokaryotes eventually evolved into eukaryotes (having multiple organelles and better structure) by forming symbiotic relationships with other ...
0
votes
0answers
11 views

How to stimulate Mimosa pudica at its roots?

The sensitive plant Mimosa pudica is a remarkable little plant whose characteristic feature is its ability to droop its leaves when stimulated: For a new studies project, could anyone think of a ...
1
vote
1answer
41 views

What is a catalytic domain?

I have to answer a few questions from an article I'm reading, and I am just really confused on defining "catalytic domain." I have to relate it to the antibiotic Teixobactin. Is catalytic domain the ...
21
votes
3answers
4k views

Did the Zika virus mutate?

The Zika virus was already present in known to the world (mostly in Southeast Asia) before the current outbreak. Why has the virus caused such an extreme outbreak? Has it mutated from its ...
3
votes
1answer
59 views

Why is ATP converted into glucose

In photosynthesis ATP is produced in light-dependent reactions only to go to the Calvin cycle to be turned into glucose to make ATP during respiration: Why isn't this ATP just directly released ...
0
votes
1answer
37 views

Can stem cells from male convert to cells of female-only organs, and vice versa?

As we know, stem cells can convert to different cells of other organs, can male use their own stem cells to convert it into cells of female-only organs(and vice versa)?
1
vote
0answers
12 views

How is “fine mapping of pelvic regulatory region” done in the stickleback PitX1 paper?

I'm working through this paper for a class. I'm a bit confused by the methods they used in one experiment. So the researchers are studying spine development in stickleback fish. They noticed some ...
5
votes
1answer
202 views

How fast can a panda run?

Pandas are going extinct, mostly due to habitat destruction. This leads me to the question: How fast can an average adult panda run? (more specifically Giant Panda)
1
vote
1answer
44 views

Why do heterozygous individuals have increased resistance to malaria?

I am aware that there is such a thing called heterozygous advantage, which is due to the presence of a certain single allele, and that an example of this could be with "sickle-cell anemia". I am ...
0
votes
0answers
26 views

What tools are used in animal cloning?

So I was reading up on articles to do a project about cloning but there were no places in the article where It states the tool used to take the gene out of the nucleus and insert it into plasmids ? ...
0
votes
1answer
25 views

Lack of yolk in mammalian oocytes as compared to other vertebrates?

Why do mammalian oocytes have little to no yolk? How does it compare to other vertebrates such as frogs, fish, and birds?
0
votes
1answer
15 views

Diffusion coefficient of cells in blood?

What's the diffusion coefficient of white cells in blood? Is it well defined, or are cells too large and few as to be treated as particles in this context? PD: I have tried to look this up, but what ...
1
vote
1answer
44 views

Do the antibodies in a patient suffering from Hashimoto's, attack the thyroid hormones or the thyroid gland (or both?)?

If oral thyroid hormone supplement is administered, is the attack stopped or does it just create an excess of thyroid hormones so that even after a lot of it is destroyed by the antibodies, there is ...
1
vote
1answer
70 views

Evidence of species transitions [closed]

I had a debate with a person who believes in some kind of creativism, let's call it that way. And in the middle of the "debate", an interesting question popped up. What are evidences of ...
4
votes
1answer
25 views

How is green fluorescent protein distributed while inside an organism?

I would like to know a relatively simple thing, but something I wasn't finding the answer to. When fluorescent protein is used in a relatively large, non-transparent animal, like a mouse, or ...
3
votes
0answers
45 views

Is it true that human cells grow in levorotation? [closed]

I remember reading this in a popular science magazine, some 20 years ago: that in most of the living organisms, cells grow in levorotation and very few grow in dextrorotation. That means, the ...
0
votes
0answers
24 views

How to clean a dental pick which has not been used in a long time? [migrated]

I have a dental pick that has been lying around for a couple years which I haven't used. It has been on the floor and lying around nooks and crannies of drawers that haven't been really clean. I ...
0
votes
1answer
36 views

Are scientist able to correct mutiple gene defect in our body by using CRISPR

Are scientist able to correct mutiple gene defect in whole body by using CRISPR recently? AS i know, it is in a beginning stage
2
votes
0answers
39 views

Why are eye defects so common? [duplicate]

The title says it all, what makes eye defects so common in the world? Whereas defects of any other body part is quite uncommon, I searched online and one of the articles said that 6 out of 10 people ...
1
vote
1answer
36 views

Was the frequency of mutations more during primitive earth due to radioactivity?

Primitive earth was more radioactive (or was it really?) according to radiometric analysis of C14 which suddenly appeared at 4250 million years in the Hadeon eon. Is it possible that ancient high ...
1
vote
2answers
73 views

Cesium-137 From Fukushima Meltdown

I've been reading up on the Fukushima nuclear meltdown and its effects it had on the environment. The iodine-131 initially released from the incident decayed after 8 days, but other isotopes such as ...
1
vote
1answer
38 views

Is bee cognition affected by neonicotinoids other than only just navigation?

It is conclusive that navigation by bees while locating food sources is affected by their exposure to neonicotinoids. http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0091364 But if ...
-2
votes
0answers
50 views

if the selfish gene theory is correct, why do survival machines with more resources not choose to replicate more? [closed]

I am not a biologist. But I am reading Richard Dawkins book "The Selfish Gene" and I find the science to be absolutely fascinating. So I am trying to look at the world (specifically human society) ...

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