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How much to larvae eat? (1. general and 2. specifically larvae of the bread beetle stegobium paniceum)

I'm no biologist or anything and thus the question might seem odd, but I couldn't find an answer anywhere on the web. I'm looking for information about how much larvae eat. To be exact I need to ...
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18 views

Transgenic zebrafish: what are some reasons for the constructs not working?

My Master's project is about generating some zebrafish transgenic lines and for that purpose I've cloned 2 new constructs, taking the promoter from a pre-existing plasmid and the vector backbone (...
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2answers
66 views

Do only large birds float?

So, I've noticed a pattern in water fowl (here meaning birds who can take off and land on water, who float in the intervening time) tend to be larger birds. The smallest I know of are gulls. Are ...
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1answer
20 views

How many cells does the hermaphrodite version of Caenorhabditis elegans have? [closed]

Wikipedia states: The male C. elegans, for example, has 1031 cells How many cells does the female version have?
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0answers
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Are there worms/snake traveling by rolling? (see youtube video)

Someone obtained this from a nature simulator : https://youtu.be/l-qOBi2tAnI Is there any animals travelling like this?
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0.9% Saline or Ringer's Solution for in vivo work

A few of the labs where I currently work routinely use 0.9% saline for in vivo work (washing out debris during surgery, diluting substances for IP/IV/SC injections, etc.) A few years ago I worked in ...
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1answer
129 views

Unknown animal - What could it be?

It's the first time I use this website and I really need help because I'm totally stuck Now I'm in school, but I'm trying to prepare for the Olympics During the preparation, I found the issue on the ...
4
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1answer
159 views

What is the difference between conditional and inducible activation?

In the modern genetically modified animal models, there are not only constitutive mutations which start producing proteins already in the embryo, but also mutations which can be turned on later. I've ...
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20 views

Organ secretions

If an animal secrets an enzyme from an organ that is entirely dedicated for the same secretion, can one or cannot one just use the gene coding for that protein to obtain the protein in vitro. How much ...
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1answer
34 views

How good is the reproducibility of preclinical models?

Unofficially, biology researchers always complain how frequently fail to replicate results others have achieved. But of course, such failed experiments are underreported. Is there data, or at least ...
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1answer
24 views

What motivates birds to make birdsong?

I was pondering the question "Why do humans make music?" and on an intuitive level, my answer was "because of the feelings it evokes of course!" But I then wondered, what about songbirds? Does a ...
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1answer
38 views

What is the purpose of narwals' tusks?

I've heard that narwals can grow their tusks up to 16 ft long. What do they need the tusk for? Hunting? Comunication?
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1answer
38 views

DNA replacement: new species

This is a hypothetical question What would happen if the DNA of a prokaryote was replaced with the one of a prokaryote of another species, would the cell structures change and adapt to the new DNA ...
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1answer
68 views

How do C. elegans manage nutrition?

If there is ample amount of food, do C. elegans worms know when to stop eating or do they store extra energy? Could they put this extra energy to use by moving faster or putting more eggs?
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1answer
251 views

What is the difference between a DPY-10, DPY-11, and DPY-13?

My TA mentioned these three mutations of C. elegans since we started working with the worms but seems to skip over what the differences are...
3
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1answer
94 views

Does isolation have any effect upon mouse behavior?

I work with a lot of mice. I don't do any behavioral analysis, I just inject DNA or RNA and do imaging assays. However, I have noticed some effect of isolation on mouse behavior. Normally, the mice ...
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2answers
78 views

What is an Ihh-/- mouse?

This one is too basic question: I just came across $Ihh^{-/-}\ $ mouse. Is that means this mouse devoid of that gene Ihh. What is this sign called and are there other such representations?
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1answer
87 views

Which turtle species was on board the Iranian Space Agency launch in 2010?

They are seen briefly in this video: https://www.youtube.com/watch?v=nZoNdf6hlII The launch made international news, but there was no mention of the species. Here's the entirety of Wikipedia's ...
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1answer
54 views

Is there a superterm combining “animal line” and “cell line” in disease models?

Biologists researching diseases will frequently use animal models. The way I understand it, there are species of animals, such as "mouse", and lines of mice, such as ...