0
votes
0answers
7 views

What is this tiny insect?

I took this picture in central Mexico. The insect is about 1mm in size. I found lots of these dead on a desk, so many that at first I thought they were just dust. I assume they came from a plant that'...
0
votes
0answers
5 views

Why do halophytes have pneumatophores?

The following is a excerpt from Studies in Botany The problem of respiration is a matter of difficulty in the soil which is saline, water logged and rich in putrefying organic bodies-hence poor in ...
-1
votes
0answers
6 views

What are the differences between good (pathogens) and bad (beneficial) bacteria?

What are the main differences between pathogens and beneficial bacteria? Is it the only difference that one create a poisonous waste material and other not, or there is something else?
-3
votes
0answers
12 views

How oxygen knows which bacteria to kill?

As we know, oxygen is a natural, powerful cleanser which cleanse the body of bacteria, viruses, and toxins, so in other words it's killing bacteria, pathogens, viruses and toxins naturally. The bad ...
-1
votes
0answers
7 views

Why can Neural Stem Cells be attracted to specific sites in the brain?

Neural Stem Cells (NSCs) have recently attracted attention as an innovative way of the cell therapy. NSCs have a highly migratory capacity and are attracted to the site of a brain pathology. Because ...
0
votes
0answers
2 views

Switching of life cycle Lambda phage

Hello everyone iam very curious to know how the lambda phage switch their life cycle (lysogenic and lytic cycle). I want to know the detailed mechanism by which this switching occurs in the phage.
0
votes
0answers
6 views

Loss of HBV Immunity

I had a full course (three doses) of Engerix-B in 2011 and 2012, but recent blood tests show my anti-HBV antibody titre is very low, so I just had a booster dose. This isn't the first time something ...
0
votes
0answers
14 views

Function of the centriole

My bio text book says Centriole is like the Nucleus of Centrosome What does this mean ? I'm a bit confused.
1
vote
0answers
8 views

Haploview command line: how to get tagSNP

I am trying to use Haploview command line software to compute haplotypes and extract tagSNP for those. When I use the standalone version on my local computer I tick the 'Show tags in blocks' option so ...
0
votes
1answer
20 views

Name of this flower?

i'd like to know the name of this flower.
0
votes
0answers
21 views

generating grid around the protein

I am trying to generate a grid around my protein. Can you please help me with thatn ? I read your post saying it is possible to do that using PyRosetta. Can you please help me with that , how to do it ...
4
votes
2answers
24 views

Identification of an insect from Florida

Any entomologists or there that can identify this bug? I live in north Florida, found this guy in my bedroom and thought it was a bedbug but I think it was too big, about half an inch long.
4
votes
1answer
20 views

Why does the cloned cat, CC, exhibit mosaic fur color?

Since fur color in this cat is from a sex-dependent gene, I see how calico cats occur. However, I don't fully understand why it happens in cloned cats. When the cat is cloned, the DNA is taken from a ...
0
votes
1answer
26 views

What is the best way to analyze non-quantitative mass spec hits from an immunoprecipitation pull down?

I am studying a nuclear protein and want to come up with a list of potential proteins that it interacts with. From the nuclear fraction of 293T cells, I did an IP (immunoprecipitation) to pull down my ...
3
votes
1answer
18 views

How specific are CRISPR-cas9 cuts?

CRISPR-cas9 uses a string of RNA that matches with DNA and makes a double stranded cut at that point. If the RNA is just a few letters in length, the enzyme would cut DNA in many places. It would be ...
1
vote
0answers
17 views

Venom Denaturing with Heat

My friend got stung by a stingray yesterday and the lifeguard quickly stuck her foot into hot water (she said the water burned slightly on contact) and remarkably, she was walking without pain in a ...
0
votes
0answers
14 views

What's the best way of generating high yields of mitochondrial DNA

I want to extract mitochondrial DNA from a fungus, but there are two ways to cultivate the fungus, one is to cultivate it on an agar medium (covering a piece of cellophane paper to stop hyphae to grow ...
0
votes
1answer
49 views

What did young pre-mammals eat before milk evolved? [on hold]

Mammals tend to be born helpless and teeth-less (and in some cases, blind). So for the first periods of their lifetime, they drink milk. Before this milk-producing property was evolved, what did the ...
1
vote
0answers
15 views

How do the chemical components of these spices prevent fungal growth?

I am doing an EE on how spices affect fungal growth for the following spices - oregano, garlic, cinnamon, cumin and turmeric. Its been hard to find any sites that say why or how they affect fungal ...
1
vote
0answers
28 views

What might this animal be?

I have found two species of this strange looking animal on the Eastern shore of the Adriatic Sea and I was simply unable to recognise them.
1
vote
1answer
44 views

Why do people sing?

I was wondering the why people sing, but from a biological point of view. Is it necessary for our body? If it is so, then why can't everyone sing well? Is it in direct relation with neurotransmitter ...
1
vote
0answers
15 views

Can 3% hydrogen peroxide be used as effective disinfectant and antiseptic?

I was curious to see whether 3% hydrogen peroxide can be used as antimicrobial and virucidal product for daily use in home. There are several disinfecting products in the market claim that use of ...
0
votes
0answers
5 views

Genetic diversity of Archae attributable to viral transduction?

I recognize that bacteriophages have the ability to accidentally trap host Bacteria DNA upon assembly. This allows the transduction of one bacterium's DNA into other bacteria when the virus ...
3
votes
1answer
42 views

Difference between pipette and pipettor

I've been translating a text listing some analytical laboratory equipment, and found that some fellow translators translate the Russian word "автоматическая пипетка" (avtomaticheskaya pipetka, which ...
-2
votes
1answer
35 views

Essential amino acids

Humans and the majority of animal species cannot synthesize essential amino acids (Info: Campbell biology 9th edition). However, meat, eggs, et cetera provide all required essential amino acids. And ...
5
votes
1answer
22 views

What wasp like insect breeds in clay pots with dead spiders?

I found several small clay pots of oval/cigar shape roughly 2cm long in a rarely used window in the house, because a wasp like insect was flying into a small cavity of the window. I removed one and ...
0
votes
0answers
13 views

Can human be emotionless?

Is it possible that a person can't produce, like, dopamine, serotonin, and other emotion hormones? Or, a part of the brain can't function to make one feel something?
-2
votes
2answers
31 views

If we add only 1 primer in PCR [on hold]

What would happen if we add only one primer, say forward primer, to PCR? (Image Credits: Wikipedia) As it is clear from the image that we need both forward and reverse primers to get it working (...
0
votes
0answers
8 views

Can a dog that has had all his shots for parvo, still contract it? [migrated]

I have a 1.5 year old Boston terrier who when he was a puppy got all his shots, including 3 for parvo. My roommate recently got a puppy. 10 weeks old? it was sick and when the vet checked he was ...
1
vote
1answer
34 views

Why does dehydration lead to low blood pressure

I understand that the two leading causes of death from dehydration is imbalance in electrolytes and loss of blood pressure. I'm trying to understand what role water is playing in these cases and how ...
4
votes
0answers
26 views

Can anyone tell what kind of berry/currant this is?

I found this currant-like plant in Helsinki, Finland. It seems very similar to red currant but it has hairs on its fruits, and the fruits are pear-shaped. Can anyone please identify this plant? Many ...
1
vote
1answer
21 views

Which magnoliophyta groups are NOT pollinated by bees and why? [on hold]

Considering the bees as the family Apidae which families of flowering plants are definitely not pollinated by them and what could be the reasons? -Could you say that the relationship is preserved at ...
3
votes
1answer
49 views

How are some people able to continue growing after reaching maturity?

This is technically a cross-post of a question posted last year concerning gigantism and how certain people are able to grow far past expectations after it's assumed they've reached maturity. How are ...
0
votes
1answer
26 views

Why our bees might have suddenly disappeared

We have a large garden in Bedfordshire, UK, next to woods and to arable fields currently planted with intensively farmed rape. We usually have many bees in the garden. Earlier this year, things were ...
-5
votes
0answers
31 views

why DNA is not harmful to us even if it is acidic? [on hold]

why DNA is not harmful to us even if it is acidic? please answer the above question.
0
votes
0answers
43 views

The mechanism of cancer metastasis

Generally, EMT, Epithelial to Mesenchymal Transition is thought to be involved in the mechanism in which cancer cells metastasize in the early stage. EMT is an process in which epithelial cells ...
0
votes
1answer
34 views

Plant cell question in age 12 science test Part II

I'm a parent and I think the teacher had been a bit harsh with marking most of these questions but can someone help me answer the very last question on the paper please (where someone has written SP ...
0
votes
2answers
27 views

What are “+” and “Ar” in consensus binding sequence of amino acids?

So I was reading this paper and found a figure as below: I understand that [LEAM] means any of LEAM residues, pS is phosphoserine and X means any amino acid residue. What is [+] here ? Is both R and ...
0
votes
1answer
33 views

Plant cell question in age 12 science test

Can anyone help me answer the questions in the attachment about plant cells. It was a question in my 12 year olds science exam. I'm baffled as I think he has given a good knowledgable answer but it ...
0
votes
0answers
18 views

How is death of a tree defined?

When a human's brain is dead and the heart stops beating, he is generally considered as dead. Such definition can be made because human has a centralized coordination system and a critical organ that ...
0
votes
0answers
42 views

Why can't we use computer mouse to draw or paint? [on hold]

I have seen a lot of artists use a graphics tablets while drawing/painting on a computer. I tried drawing on a computer using a mouse, and its worse than what I can draw on paper with a pencil (I'm ...
-2
votes
0answers
23 views

what are two materials that are reabsorbed during the reabsorption phase in the process of urine formation? [on hold]

what two material are reabsorbed during the reabsorption phase in the process reabsorption phase? and are there more than two. If not the two main ones?
0
votes
0answers
7 views

Why does referred visceral pain not have a referred cutanous pain counterpart?

Most textbooks (for example: Neuroscience, by Dale Purves and colleagues) describes referred pain from visceral nociceptors as caused by synapsing of the afferent nociceptive signals on secondary ...
-3
votes
0answers
18 views

create a feedback model using a flow chart that illustrates how male hormones regulate and maintain homeostasis [on hold]

Just a step by step paragraph or digram of how males hormones regulate and maintain homeostasis
-5
votes
0answers
17 views

Is the human brain the muscle with the greatest leverage? Menu to brain [on hold]

1) The brain being our best lever, muscularly, shouldn't we treat it better? 2) Diet being our best conduit to good health in general, don't we need more competition in the food market, relative to ...
0
votes
1answer
27 views

How does mad cow disease evade immune system? [on hold]

The mad cow disease is caused by prions right? So how do prions avoid white blood cells and antibodies?
0
votes
2answers
24 views

Is it possible to stop Escherichia Coli from reproducing?

I am a biology student and a professor asked me to research this question. I have not found much information, only that during the process of asexual division, by blocking a couple of genes, you can ...
0
votes
0answers
13 views

Kinases that are ATP-sensitive at physiological conditions?

Phosphorylation is an ATP-dependent process performed by kinases. At physiological conditions it is generally assumed that ATP concentration is high enough so that ATP is not a limiting factor. ...
-3
votes
0answers
24 views

Can You explain this readtion? [on hold]

Reagents bind to the functional group of biological molecules by covalent or non-covalent bonding or interactions. Explain this interaction between each reagent and its prospective functional group.
0
votes
1answer
16 views

Full Sequence for Plasmid pMG101

I am trying to find the full plasmid sequence for pMG101. I have been looking through other papers that have sequenced this plasmid. The GenBank access numbers I got are the following: AY009372–...

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