0
votes
0answers
3 views

SRC & RSV virus origins

When a virus infects a cell it undergoes recombination with cell genome. I understand how recombination happens. So in the process, is a gene from virus delivered into human genome or human genome ...
1
vote
0answers
8 views

Is intron removal coordinated?

Are the introns present in a nascent rna molecule removed simultaneously or are they removed in some sort of sequential fashion or is removal completely random?
1
vote
0answers
9 views

Linkage disequilibrium D sign

Linkage disequilibrium D equals D=x11−p1⋅q1 where: Haplotype > Frequency A1B1 > x11 A1B2 > x12 A2B1 > x21 A2B2 > x22 and Allele Frequency A1 > ...
0
votes
0answers
6 views

Are there any drawbacks to having a fixed-Köhler microscope?

I am considering to buy the Zeiss Primo star microscope. There are two variants: one with so called "Full Köhler" illumination and one with "Fixed-Köhler" illumination. Are there any drawbacks to ...
1
vote
1answer
28 views

Why aren't introns found on the ends of pre-RNA?

We recently learned in genetics class that exons always cap the ends of nascent RNA. I have been trying to figure out the reason why introns can't instead be found on the ends instead of exons. The ...
1
vote
1answer
36 views

Question about two parasites

How closely related (from the evolutional point of view) are parasites Giardia intestinalis and Trichomonas vaginalis? Giardia genome is about 12 Mb and its major cellular proceses are rather simple. ...
0
votes
0answers
10 views

How to calculate when the velocity declines in an Enzyme Kinetics Problem

If you have an E,S pair that has KM and Vmax values of 2 mM and 1 mM/sec/μM enzyme and you start the reaction with 10 mM [S] and 1 μM [E], approximately how long will the E,S system stay in the ...
0
votes
0answers
13 views

What is the difference between clinical and non-clinical depression, and is there a term for different severity of the bipolar disorder?

I was looking for a term which describes a bipolar disorder of lesser severity. I know from experience from someone I know well, what a very severe case of the bipolar disorder looks like, when an ...
-2
votes
1answer
34 views

What is the difference between regular blood, a woman's and a virgin's menstrual blood?

There are many stories that blood contains the life-force energy and specifically menstrual (period) blood has always been a feature of many rituals and some ancient Sumerian tablets mentioned that ...
0
votes
0answers
6 views

Exclusive microtubule -end labeling

Like the title explains I am looking for a way to exclusively label microtubule minus end in vivo. Looking through the literature I could not find any techniques yet. Do you have an idea?
0
votes
1answer
24 views

Knowledge about Organelles

As we know, there are various organelles present inside a cell. Let's consider mitochondria for example. My questions are -> Do we understand the composition, structural and functional features of ...
0
votes
2answers
31 views

Is it possible to calculate the energy required to speak a word?

I was discussing with a colleague whether speaking would require more energy than communicated via instanct message (GTalk etc..). If this is possible then I'm particularly interested in whether ...
2
votes
0answers
29 views

What is the “Spandrels” debate about?

In a former question, as a side question, I asked a clarification about the "Spandrels" paper. Being not a biologist, it was the first time I encoutered it. Subsequently I tried to collect some ...
-2
votes
1answer
22 views

Affinity isolated peptide

What is affinity isolated peptides??(I have not studied biology since last 8 years and now I am going through it because I need it for my research. So if someone can describe it in simple language it ...
1
vote
1answer
15 views

Difference between sequential and conformational epitope

Is the difference only in its structure? Like conformational epitope has 3D structure while sequential has a linear structure?(I have not studied biology since last 8 years and now I am going through ...
-1
votes
1answer
28 views

What is MHC haplotype? [on hold]

What is MHC haplotype? I did check out the wiki article, but did not understand. (I have not studied biology since last 8 years and now I am going through it because I need it for my research. So if ...
1
vote
0answers
10 views

Does unequal dominance mean the X-chromosome should be a coldspot for antagonistic variation?

Sexually antagonistic genetic variation, in a simple model, will persist if the benefit to one sex is (near) equal to the cost in the other, otherwise the polymorphism will be selected out of the ...
0
votes
0answers
16 views

Oxygen requirements of eukaryotes

Is any of you aware of any resources where I can find information about the oxygen requirement for growth of eukaryotes? As an example, say I'd like to know whether Candida dubliniensis, ...
-2
votes
0answers
15 views

Doubt regarding COBEpro [on hold]

http://www.ncbi.nlm.nih.gov/pubmed/19074155 This link contains the summery of how to predict continuous B-cell epitope. Can someone please explain this to me?? I did read it, but failed to make out ...
0
votes
0answers
22 views

Educational Materials (Graded) for Human Biology and Chemistry

I was wondering if anyone could recommend educational materials and resources (such as text books) that covers human biology and chemistry together, preferably with beginning, intermediated and ...
0
votes
0answers
15 views

MHC restricted peptide

What is an MHC restricted peptide? "MHC-restricted antigen recognition, or MHC restriction, refers to the fact that a given T cell will recognize a peptide antigen only when it is bound to a host ...
4
votes
2answers
298 views

What's the longest transcript known?

What's the longest functional transcript known? I'm wondering about RNA length post splicing, so not including introns.
2
votes
1answer
29 views

Drugs metabolism and detection

If someone is taking treatment for a psychiatric disorder, for example diazepine, would traces of the metabolized drug show in their sweat or saliva? Would it be chemically detectable?Any links to ...
3
votes
1answer
50 views

Could this Francobelgian comic book woman really have these 4 diseases at the same time?

I'm doing an archive binge of a paper comic "The Kiekeboes". One of the characters is an elderly woman currently at the doctor, and she says the has the following illnesses: Erythema Exsudativum ...
2
votes
0answers
27 views

Plotting metabolic networks?

I need to draw a map of the core metabolism of E.coli. Associated with each reaction in the map I have a number that indicates the flux through this reaction. I want the map to reflect these fluxes ...
2
votes
2answers
18 views

Question about flavodiiron protein

I came across an article about flavodiiron proteins that are responsible for reducing ${\rm O}_2$ to ${\rm H}_2{\rm O}$ thereby protecting the anaerobic prokaryotes and some eukaryotes from oxidative ...
2
votes
2answers
50 views

Manufacturing of Bio Molecules [on hold]

Can we Manufacture bio molecules say e.g. the simplest Sugar, C12,H22,O11 the way we do with any other mechanical component. So, we know all about the Structure and arrangement of Atoms in Sugar - so ...
2
votes
1answer
25 views

How many water molecules will be generated when single nucleotides are used to make this RNA: 5’-UUAACCGUCAG-3’?

Based on what we learned on condensation reactions, how many water molecules will be generated when single nucleotides are used to make this RNA: 5’-UUAACCGUCAG-3’ I had an online biology quiz with ...
3
votes
1answer
26 views

Question about microaerophilic parasite tolerance for oxygen

Does anyone know what is the maximal concentration of oxygen that can be tolerated by the parasite Giardia intestinalis?
2
votes
1answer
23 views

Kinesiology Tape Benefits

Recently, kinesiology tape has become popular, especially in CrossFit. I have also noted its' use in the NFL, and I want to say Tennis as well. What beneficial effects does this tape offer our bodies ...
3
votes
1answer
61 views

Why do baby mammals tend to play?

Why do babies of any mammal tend to play ? From humans to small dog pups, cubs of a lion, baby bears, etc. *I am not sure if the tag I chose is correct or not. Please correct me if I'm wrong.
0
votes
0answers
22 views

Should I be worried if I sweat too much? [on hold]

I have been facing this since I was young, when I played the piano, my palms would become sweaty. Lately I've been noticing my hands have been sweatier than ever, and even the soles of my feet. This ...
2
votes
1answer
90 views

Which process is needed to complete male reproductive development?

In order to properly complete male reproductive development: ...
-7
votes
1answer
51 views

Evolution 15 + 15 [on hold]

If I flap my hands for say, about 1hr everyday, and I teach my future children to repeat this and so on, theoretically (at least), how many generations would it take for my grand [sons ...] to be ...
0
votes
0answers
18 views

Brain and its activity [on hold]

How could we increase our brain activity.. memory ..reasoning ..imagination.i have some time got very unique ideas but some time im failed in reasoning.,although this both tasks are performed by same ...
1
vote
1answer
52 views

Did spiders respond to light for building webs before artificial light was invented?

I have noticed that during summer, beautiful spider colonies grow wherever a strong light is: I'm wonder whether spiders evolved to seek naturally lighted areas where they build nests (before ...
3
votes
1answer
21 views

Vitamins located closely under the peel?

I came across an old saying (I would even call it a myth) that vitamins are concentrated under (or close under) the peel of apples or potatoes and other fruit. This implies that they are more ...
5
votes
1answer
29 views

Cross-integration of puma subspecies populations

A major concern of conservationists in south Florida is the population of native Pumas, the Florida Panther. Until recently, it was thought that the Pumas were a genetically distinct subspecies, ...
6
votes
2answers
67 views

RNA-Seq library construction challenges: the biases of RNA fragmentation vs cDNA fragmentation

I recently watched a presentation on RNA-seq that covered some of the choices one can make along the way, and I didn't fully understand one of the choices in particular. Near the beginning of the ...
4
votes
1answer
75 views

How do animals lose heat?

I remember being told as a child that dogs stick their tongue out to stay cool, because they can't sweat like us. This made sense to me. But only a couple of days ago I suddenly thought: What about ...
9
votes
3answers
546 views

Evolution of bird wings

In this answer on aviation.SE a comparison is made between the shapes of airplanes wings and the shapes of birds wings. It concludes with the following remark: After all, no bird has winglets. Not ...
2
votes
1answer
14 views

Effect of extremely hard water on marine life?

When researching water quality standards, I found that a minimum and maximum was set for water hardness. Several sources also state that water can in fact be too hard. The question is how does hard ...
3
votes
1answer
42 views

Help identify this awesome climbing plant with velcro like stem

I got this plant sprouting in my window box this spring. Starting from a single seed, it has grown into an impressive array of branching climbing vines, reaching 6 feet tall. The stem turned red as it ...
3
votes
2answers
76 views

Name of This Black and White Dove

I spotted this dove in a park. It was foraging among Rock Doves, Seagulls, Ibises and a few others. It appears similar to Pied Rock Doves, but I am not certain if this is correct. Any idea what ...
0
votes
0answers
14 views

What Type Of Goggles Offer Better Protection For Airborne Pathogens

For airborne pathogens, be it Chickenpox, Influenza, Measles, Smallpox and Tuberculosis, which offers better protection against aerosolized particulates, splashes, etc? Non-vented, Vented (regular), ...
4
votes
1answer
45 views

Oxidation means inflamation?

All right, I was reading article on nutrition, that focussed on content analysis of pastry-like food product for kids. I have to say that I am not sure this article would pass the imaginary smell ...
2
votes
2answers
38 views

Why is gastric lavage considered to be helpful only if a patient comes to a hospital within 1 hour of a toxic ingestion?

Why is gastric lavage considered to be helpful only if a patient comes to a hospital within 1 hour of a toxic ingestion? How severe would the effects be if a patient came to the hospital after the ...
0
votes
0answers
20 views

How does temperature influences rate of protein decay?

For computer modeling purposes, I am looking for some referenced quantitative measurements of the effect(s) of temperature on the dynamic of biochemical reactions. Question In particular, my ...
2
votes
1answer
139 views

Why do I breathe out of BOTH nostrils?

After reading the question why do I only breathe out of one nostril I realized that breathing out of both isn't common. I have always breathed out of both, and when I get a stuffy nose, or a runny ...
2
votes
1answer
53 views

What is the point of DNA sequencing?

This is a very very basic question. I've looked at methods such as chromosome sequencing and shotgun sequencing. Wikipedia says that: ...

15 30 50 per page