0
votes
0answers
10 views

Can anyone ID this ant queen species?

It was found in Hong Kong! Below are a few basic information: Place: Hong Kong Habitat: Forest. I live very close to a mountain with lots of forestation. Where Collected: Found it in my window ...
1
vote
0answers
11 views

Partial Contribution By One Parent

For flowering plants, what might cause the genome size of offspring from a cross between 2 diploid parent of differing genome size to reflect only a partial contribution by the larger genome size ...
1
vote
0answers
8 views

Can ' functional' stress 'forced upon' a cell actually cause cell mutations when they divide and reproduce?

If a group of cells are forced to go beyond their regular biological parameters that they should be under given ' healthy' functioning and while existing in these stressed states some of the cells ...
2
votes
0answers
11 views

Why would a venus fly traps mouth that's still “chewing” die?

A venus fly trap produces leaves that act like traps for insects. A trapped insect is digested over several days. The trap then opens again to catch another insect. These traps regularly die off. ...
0
votes
1answer
9 views

Methylation Data for Erythrocytes (Red Blood Cells)?

Why is it that white blood cells (leukocytes) are highly characterized in DNA methylation pure cell line profiling, but I can't find any profiles of red blood cells (erythrocytes)? Is blood considered ...
0
votes
0answers
6 views

Nature vs Nurture in Rooster mating dance: Are roosters lame dancers because they never learned any better?

I've seen, read about, or heard several avian courtship dances, flights, songs, and other rituals. They are general very impressive, fancy, and beautiful. Roosters, by comparison, are quite lame. The ...
-2
votes
0answers
12 views

Mitosis Maths Question Chromosomes [on hold]

I just wanted to ask regarding mitosis... if a body cell starts with 24 chromosomes, then how many will the new cells have? Thanks, Bob.
0
votes
0answers
17 views

Why Do we close our eyes while sneezing?

Google says germs may fall on eyes from our sneeze but it happens all the time . Also it says it a part of contraction. What may happen if we sneezing wirh our eyes open ?
1
vote
0answers
9 views

can the regeneration mechanism be used in humans that of lizards?

how lizards grow their tail again like is there any mechanism or specific protein which helps them to regrow their tail? can the mechanism of regeneration be used in humans to regenerate our limbs is ...
-2
votes
0answers
10 views

After a night of drinking, why am I hungry for information? [on hold]

This is a tough question to phrase appropriately, but I will try my best. Last night, I had a small party at my house, and we ended up drinking a lot of alcohol, both beer and liquor. I was no where ...
0
votes
0answers
9 views

Is it better to eat something that is more or less related to humans?

My question is, would it be better to eat something like a sea cucumber or would be it better to eat a chimpanzee? Maybe this isn't a dichotic answer. Is it better to eat something in between, like ...
-1
votes
0answers
8 views

Sub-Saharan African Man Genome compared to Chimpanzees and Bonobos

I've recently came across a rather "politically sensitive" subject, and I chose to not discuss it on public due to possible backlash. This question is in no ways meant to offend anyone, it is rooted ...
0
votes
1answer
11 views

What does NaOH do for the plating of Bacillus subtilis?

A book called Molecular Biological Methods for Bacillus called for plating Bacillus subtilis cells on LB-agar plates with the following components: A general-purpose medium containing per litre: ...
3
votes
1answer
15 views

Identifying flying insect from northern Poland / Baltic Sea area

Found during this year vacations at Baltic Sea (northern parts of Poland): I don't have a picture containing other object, for size verification, but I'd say, that it was 3-4 cm long. There were ...
-1
votes
0answers
10 views

Evolution of healing for burn injuries in mammals?

Our body had very specialized processes for healing burn injuries. Namely the process of blistering. My question is how this process for healing burns evolved considering how rare burns must be in ...
2
votes
0answers
13 views

transitional mutation, repair mechanism

I have read an answer to a question about dna repair during and after replication. But how is dna repaired if a deamination of of 5-methylcytosine happens? How does a repair mechanism identify which ...
3
votes
0answers
28 views

Did I just watch a spider die?

So I'm sitting in my office and all of a sudden a small spider is gliding down on a web string from the ceiling, right in front of my eyes, and down onto my desk. It proceeds to make a few awkward ...
0
votes
0answers
14 views

How does the embryo inside a shelled egg get oxygen?

If I'm not mistaken a typical animal in the womb will get oxygen via the umbilical cord from the mother. Thus allowing it to "breathe" in a liquid environment. I thought maybe shells are permeable and ...
0
votes
1answer
20 views

Is galvinoxyl antioxidant assay possible using NMR spectroscopy?

I would like to perform an antioxidant assay using the galvinoxyl protocol. The protocol states that we need EPR spectroscopy, but only NMR spectroscopy is available at my institution. Is there an ...
-1
votes
0answers
10 views

Two colors in the eyes [on hold]

my husband has dark brown eyes and they turned blue in his seventies. The brown is back with a blue ring around it. Why is that?
0
votes
0answers
5 views

what is the effect of temperature and carbondioxide on the opening and closing of stomata?

I am teaching biology in an academy. The question which I had asked above had been raised by on of my students. I tried my level best to search out the answer to this question but I could not find the ...
4
votes
1answer
55 views

How to know the gestation time of pregnant mice?

In lab mice I wish to establish how many weeks my animals are into their pregnancy. Is there some way?
1
vote
1answer
17 views

Trial pre-registration service that accepts non-clinical trials, or specifically ecology?

I'm in the early stages of designing a trial in ecology. I'm interested in pre-registering the trial, as suggested here. My concern is that all of the registries (that I can find) deal specifically ...
1
vote
0answers
17 views

Seeing through the rain

This question leads me to wonder about seeing in and through rain. From visual point of view, rain is light-bending droplets moving downwards, unformly in steady rain, less uniformly if there's ...
1
vote
1answer
18 views

Is T7 promotor leaky in DH5 alpha?

In my experiment I found that a GFP gene under T7 promotor in high copy number pTAC-2 vector is showing green fluorescence producing colonies of DH5 alpha under UV light. what could be the possible ...
0
votes
0answers
19 views

Twin pregnancy, one natural, one surrogate, is it possible? [on hold]

Looking for any case study or biological reason why the following would / would not be possible: Couple A creates and stores a frozen embryo Couple B gets pregnant naturally Couple B then, without ...
0
votes
0answers
5 views

What anaconda species/variants/whatever (if any) would be plausible to keep as pets in Europe? [migrated]

All my life I've had one favorite animal: the anaconda. I used to read up quite a lot of documentation on them, but as time went on, I forgot most of it & haven't really found the time lately to ...
2
votes
2answers
17 views

Are gizzard muscles voluntary or involuntary?

I started raising chickens this year. They have amazing appetites, and I often wonder what eating is like for them. They have no teeth, so they don't chew their food as they eat it. They do seem to ...
0
votes
0answers
6 views

What is the decision making process when a bird builds a nest?

I have been watching The Life of Birds and I am rather startled by the ingenuity some birds show in building their nests. For instance, one species built a dummy nest on top with a secret entrance ...
0
votes
1answer
21 views

Nature of Dengue Fever Genetic Material

Once the genetic material for Dengue Fever is inserted into the human DNA, would the Dengue Fever molecular material be in the form of its own isolated DNA fragment or will it be inserted directly ...
0
votes
0answers
29 views

What options are there to consume water and can you survive on them alone?

I thought about this a while, i can think of several ways, but i am not sure if there are other options and if you can survive on them alone withou dying of dehydration (lets ignore other problems ...
-3
votes
0answers
50 views

Reduction events in humans versus Arabidopsis type evolution [on hold]

What reduction events cause an isolated (sexually or geographically) tetraploid population created by a polyploidy event to be able to reduce the number of chromosomes over time? Fusions events have ...
1
vote
1answer
23 views

Rattlesnakes developing stronger venom

I have heard that rattlesnakes are developing stronger venoms causing more people each year to die from rattlesnake bites. But why would a snake that is already very venomous need to develop stronger ...
-1
votes
1answer
24 views

Monarch mimic other than viceroy? [on hold]

I once saw a butterfly that looked a lot like a monarch. It had orange wings with a black edge and white spots on the edge. It also had 1 black spot in the middle of each wing. I saw this butterfly ...
4
votes
1answer
81 views

Why does nature use a 4-level system (DNA) to encode information?

First, I am not a biologist, so this question might be naive: All of our information processing and storing is based on 2-level logic, bits with 0 and 1. Now, DNA stores the information in a 4-level ...
0
votes
0answers
33 views

Evolution of a Population

Scientists observe a newly established population of sexually reproducing plants growing on the shore of a small island. An observable trait of the plant has two possible phenotypes. It is determined ...
1
vote
1answer
130 views

Hardy-Weinberg Equilibrium Question

I have four questions concerning H-W Equilibrium: (i) In a population of mice, the presence of black spots is the result of a homozygous recessive condition. If the frequency of the allele for this ...
2
votes
0answers
20 views

PAGE gel in EtBr

I have been using TBE-PAGE gel to see small fragments of DNA by post-staining that means gel is stained with EtBr after electrophoresis. Someone told me that you can add EtBr before polymerizing ...
2
votes
0answers
20 views

What is the distribution of the number of heterozygotes in finite populations?

Consider a bi-allelic locus with alleles A and a. We denote the frequency of the A allele by ...
0
votes
0answers
17 views

Link together all alike DNA sequences [on hold]

Is it possible to take a DNA solution and link together every alike fragment of DNA in the solution?
2
votes
0answers
40 views

How do we know Denisovans had 46 Chromosomes

What allows sequencers to conclude that Denisovans had 46 chromosomes rather than merely knowing Denisovans had the crossover material arranged in 48 or say 44 chromosomes? See ...
1
vote
2answers
23 views

Is it possible to amplify every single piece of DNA through PCR?

Is there a way to perform non-specific PCR amplification for the purpose of amplifying every piece of DNA present?
2
votes
1answer
21 views

How is pain induced by blunt and sharp objects?

Normally, when something touch you, you won't feel pain. With a great force "touching" you, you will feel pain. However, if something that is spiky makes contact with you, you will feel pain. So, how ...
0
votes
1answer
13 views

Extending a small fragment of DNA

Is there a way to extend a small fragment of DNA, say 150 bp, by making copies of itself and attaching each copy of that small fragment to the end of that 150 bp sequence? For example, I want a 1kbp+ ...
0
votes
0answers
10 views

White blood cell transfusion

Some patient who have low White blood cells need WBC Transfusion do resist infections. What is interesting, doesn't transfused WBCs cause temporary autoimmune disease ? Like recognising patients ...
3
votes
0answers
14 views

What techniques can be used to link environmental conditions to crop yield?

Im interested in how we can determine what are the optimal conditions for crops and how deviations from these optimal conditions affect yield. In the literature I have found two main approaches and I ...
1
vote
0answers
18 views

Role of microvilli in cell volume regulation

Does the presence of microvilli on a cell's surface ensure that it's more resistant to cell swelling or lysis in a hypotonic solution, as compared to a normal cell?
0
votes
2answers
50 views

Junk DNA and “random” mutations [on hold]

I'm somewhat irritated by "mutation" generally being described as a fully random factor in evolution: pure randomness does not seem like something that can survive in a long evolutionary process. And ...
0
votes
1answer
21 views

Whole Genome Sequencing and B Chromosomes

Do whole genome sequencing techniques detect B chromosomes if such chromosomes are present? My understanding is as follows: How the DNA material in a B Chromosome is mapped depends on the reference ...
0
votes
0answers
9 views

Why is dopamine considered both an excitatory and Inhibitory neurotransmitter? [duplicate]

To me it seems the one allows flow and the other prevents flow. How does dopamine do both?

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