0
votes
0answers
2 views

Why does mitochondria have their own DNA?

If you didn't know mitochondria are the powerhouses of your cells - they are where the processes of respiration and energy production occur so they are imperative to our survival. The problem is that ...
-1
votes
0answers
9 views

Zika Acquired Immunity

A woman is bitten by a mosquito carrying the Zika virus and then develops symptoms. Her symptoms disappear after a given amount of time and she becomes effectively immune to reinfection (assuming she ...
1
vote
0answers
6 views

Do blurry images cause eye strain? At what point is an image so blurry the eye stops trying to focus it?

I'm a user experience designer concerned about a new trend of blurring screens when showing a lightbox/dialog box over top (see below). From what I know, blurry images cause the brain to work hard ...
0
votes
0answers
8 views

why are malarial parasites specific for anopheles

why are malarial parasites specific for anopheles mosquito. why do they need only anopheles, they just need lower temperature to complete their life cycle. all mosquitoes are cold blooded, so they can ...
3
votes
1answer
25 views

How long would it be, before a change to the DNA would take effect?

I am not a Biology Student (sorry guys!) but I have thought about this question for a while and hope that maybe one of you can answer it. Lets say that I had my DNA changed so that I wouldn't be ...
1
vote
0answers
6 views

Relation between biomass and radius of roots system

Is there a known relation between the mass of a plant to the size of its roots? For example, can I take the root size to be proportional to the biomass of the plant like in this relation: $$R = R_0 (...
0
votes
1answer
10 views

How can an individual have A- and B- antibodies and no A- and B-antigens? [duplicate]

Why, or how, can someone of the "O Blood group" have A- and B-antibodies without having A- and B-antigens? This doesn't make sense to me, as an antigen is required to trigger antibody production?
0
votes
0answers
14 views

Write a short note on chemiosmotic theory [on hold]

I request the answerer to write a note based on the points discussed below (for Minor level). I couldn't find any website or book stating the chemiosmotic theory. So I request the answerer to provide ...
0
votes
0answers
16 views

No Bands From PCR

I am using gene specific markers for polymorphism. I have been running PCR at different annealing temperatures ranging from 50-55°C according to primers Tm. But I am continously failing to get any ...
0
votes
1answer
13 views

What's the highest temperature that algae can survive at?

I know there are a lot of different species of algae and that each one has different environmental tolerances. I've seen data on different species: brown alga Sargassum echinocarpum J. Agardh - ...
1
vote
0answers
22 views

How to specify a promoter in de novo gene synthesis service?

I am trying to use a de novo gene synthesis service (Genscript) and one part confuses me: Where do I pick the choice of promoter? Or is the promoter choice automatic based on my plasmid choice? e.g....
-3
votes
0answers
28 views

Do any Eukaryotic organism have prokaryotic cells in their body?

I am asking this question, because of this question. Is there any Eukaryotic multicellular organism that has prokaryotic cells in their body? Alternatively is there any Eukaryotic unicellular ...
0
votes
1answer
21 views

Comparative effectiveness of antibiotics against colonies and growing bacteria

Appropriate antibiotics usually eliminate bacteria. However are the same antibiotics as effective against bacteria that have grown to form a colony?
-1
votes
0answers
14 views

RNA-seq: Controlling FDR in multiple contrasts [migrated]

I'm working on a RNA-seq analysis project and I have come across a statistics problem. I have 3 groups and I need to look for differential expression for each pairwise comparison. Do I control the ...
-1
votes
0answers
6 views

Testing for Endospores Using Heat Method

I am trying to test if a new bacillus isolate is in an endospore state. I know there is a staining method of testing this. However, my professor requests I use a "heat method". The idea is that if you ...
-2
votes
0answers
11 views

How does the brain develop different parts? [on hold]

The mammalian brain contains many parts which perform specialized functions. However, the actual mechanical makeup (neurons) are mostly homogenous throughout the brain. After a brain achieves ...
-1
votes
0answers
16 views

Flora of Camelot [on hold]

In the musical "Camelot", Lerner and Loewe describe the idyllic weather of that mythic land in part this way The rain may never fall till after sundown ... By nine p.m. the moonlight ...
2
votes
1answer
206 views

What do the letters 'p' and 'c' mean in mutation descriptions?

Example: NM_000525.3(KCNJ11):c. 67A>G ( p. Lys23Glu) AND Permanent neonatal diabetes mellitus Does "p" stand for "polymorphism"? What does the letter "c" stand for?
1
vote
0answers
31 views

Can a firefly control its glow?

I've just seen this animation: I always thought the firefly glow is ongoing slow chemical reaction, like in glowsticks though through different chemicals. As such it seems impossible to control ...
-1
votes
1answer
24 views

How to double check plasmid detected by PacBio?

We detected a 50 kb sequence of plasmid apart from the chromosomal sequence by whole genome sequencing. We are interested in wet lab validation of this plasmid for publishing. Even though wet lab ...
3
votes
1answer
43 views

Identification of a spider from my basement

It's a little over 1" long including legs, and I found it in my basement in Pennsylvania. My guess is a funnel weaver, which would be nice since then I can free it (right?) from the tin can it's ...
1
vote
0answers
36 views

Fish and microplastic particles

How does exposure of fish to microplastic particles decrease egg-hatching and give young fish a craving for them? From Garbage in, garbage out: marine plastic 2016-06-24 | Espresso There is more ...
1
vote
1answer
33 views

Name of dominant dinosaur

I seem to remember reading some time ago about a dinosaur appearing very prominently in the fossil record, with continent-wise distribution. The layer is known specifically for having so many fossils ...
0
votes
1answer
31 views

Parameters of Variant calling analysis

What is the good or stringent parameter for variant calling. At present using the DP > 10 and Q > 30 for Variant calling. Is it ok.? Thanks
-1
votes
1answer
14 views

How can i get only the upstream and downstream genes from chip-seq peak files

I used R and i wrote a script that analyzes peak files from ChiP-seq experiments from ENCODE. I am new to this field, i want to find only the upstream and downstream genes because i want to insert ...
0
votes
0answers
12 views

Are apples really better for the immune system than most fruit? [migrated]

"An apple a day keeps the doctor away", the saying goes, implying that apples are somehow especially good for the immune system. But does this idiom have any validity to it? Are apples high in ...
-1
votes
1answer
27 views

what percent of DNA consider to be “junk”?

Does 98% of a whole human genome observe to be "junk" or 98% of each single human DNA observe to be "junk"or "non protein coding region"?
0
votes
1answer
14 views

Are different eye colors indicative of chimerism?

If an animal or person has different colored eyes, does that mean they are a chimera?
1
vote
1answer
12 views

How are constitutive enzymes regulated?

I found that inducible enzymes can be regulated by many ways, but I cannot find how constitutive enzymes are regulated...
-1
votes
0answers
17 views

do fishes come to die in beaches? [on hold]

Afternoon I found a fish in a beach, it seems that it kept moving, i was not injured but suddenly stop moving and 'died' so my question is do fishes sometimes come to day at beaches ?? or what could ...
3
votes
2answers
41 views

How should “the human genome” be interpreted?

What does sequencing "the human genome" mean? Don't individuals have unique genomes?
1
vote
1answer
50 views

How to batch convert gene names to protein IDs in Uniprot?

I have a list of >1000 "ordered locus names" from the STRING database (also called gene numbers, ORF numbers, or CDS numbers by uniprot). They're in the form of 'b0014', 'b0015', etc. I'd like to ...
1
vote
0answers
28 views

Forgot to cool slides before washing

I just finished an immunofluorescence experiment and I'm wondering what went wrong. The tissues seem dimmer than they should be. One mistake I made was: I completed the antigen retrieval step, in a ...
1
vote
2answers
42 views

What is meant by topographic barrier?

There are three types of barriers, physical , climatic and biological barriers that can prevent the dispersal of organisms. Topographic barrier falls in the category of physical barrier but exactly ...
-1
votes
1answer
14 views

What is the total estimated biomass of Earth? [on hold]

If possible could you also give the distribution according to species or ecosystem wise such as, aquatic, terrestrial etc.?
4
votes
1answer
78 views

Are all genetic instructions in DNA?

Wiki says DNA is a molecule that carries most of the genetic instructions used in the growth, development, functioning and reproduction of all known living organisms and many viruses. What ...
-5
votes
0answers
27 views

How to wash hands properly? [on hold]

I have heard from my childhood that you need to wash your hands or else you will be sick. Is this true? By the way what do you mean by this 'wash hands' (or) How to wash hands properly?
0
votes
0answers
7 views

Phase separation of FIB1 Protein in NaCl solution [on hold]

What is the mechanism of phase separation that causes droplets to form in a solution of proteins and NaCl, given the concentration of NaCl that allows this to happen?
0
votes
1answer
28 views

What is the effect of wheat's polyploidy on wheat itself and on us?

According to Wikipedia, "Hexaploid wheats evolved in farmers' fields", and bread wheat is among them. There is also diploid and tetraploid wheat. I guess that hexaploid wheat, besides the obvious ...
0
votes
0answers
20 views

How does plant life obey the constraint that the change in Gibbs free energy in a reaction must be negative?

My understanding is that if a reaction takes place, either entropy of the system must rise, or energy must be released from the system as heat, or both. (Citation: paraphrasing from The Vital Question,...
0
votes
0answers
9 views

Can temporomandibular joint disorder cause sensorineural hearing loss?

Is the pain when walking or running with such a disorder an indicator that hearing loss is occuring or going to occur? Ear pain is considered a symptom for this disorder. Can that be an indicator of ...
1
vote
1answer
25 views

How to put a gene under the control of a regulable promoter?

Suppose I have a hetrologous (eukaryotic, plant) gene sequence that I want to express in E Coli under the control of a regulable promoter (say the lac promoter induced by IPTG) how exactly does one ...
0
votes
0answers
23 views

Can crocodiles live past 155 years of age?

I was at the Teluk Sangat Crocodile Farm ("Crocodile World") in Johor, Malaysia. There were a bunch of crocodiles that were claimed to be 60-80 years old (these were printed signs), one or two that ...
-3
votes
0answers
16 views

Choose the intruder [on hold]

A. Antibody B. Antibiotics C. Micro-tubule D. Cholesterol I couldn't find a link between any of these 3 components to actually find an intruder.
3
votes
1answer
35 views

Is there evidence to suggest that sharks from prehistoric times live in the deep of the oceans?

I've had friends see the boat and giant teeth of a giant shark attack of a boat in Japan. (Teeth larger than a great white). [I can't find anything about this on the Internet]. In addition, this ...
0
votes
0answers
33 views

Stopping the Gag Reflex: How and why does it work?

I was talking to some friends over the weekend, and one of them made a comment about gagging. He said that he read or watched that clenching your thumb with your other fingers (making a tight fist ...
0
votes
1answer
33 views

Deducing protein sequence length from gene DNA sequence length

Is there a standard way to deduce protein sequence length from gene DNA sequence length of the gene coding for it? Naively I had assumed that ...
0
votes
0answers
16 views

RNA interference and the former Petunias experiment >

I'm having problems trying to understand how RNA interference works. From what I understood, in simple terms there is this dsRNA which is fragmented into siRNA by the enzyme called Dicer, and those ...
0
votes
0answers
9 views

Restriction enzyme recognition sites for plasmid libraries

I'm having trouble with the following question: You wish to cleave genomic DNA into fragments average about 2kb for cloning into a plasmid library. Which of the following restriction enzyme ...

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