gonelli

What type of reactions did you learn in the class?

I would think that a bacteria "family" looking out for each other would be achieved by them looking for bacteria with related DNA. But how related would they have to be for there to be any co-operation between them? Maybe second cousins lye to each other?

perhaps measuring the mass of the nails before and after being put into the different pH solution? or maybe even testing the flexibility of the nail before and after?

Maybe someone should go and tell the US government about the second law of thermodynamics before they buy that HHO/petrol hybrid from this guy

Was all the genetic material (plasmids, genomic DNA and Drosophila DNA) in the one well, therefore all along one lane? And did the "faint white smudge" only show up on the test lane or was it seen in the control lane as well?

Does memory ability apply to intelligence in any way? For example, memorising the skills/techniques to solve certain problems. As opposed to not knowing the method and managing to find a way to solve the problem anyway.

The smell probably wouldn't be that of ozone as before the lightning storm there would be little or no ozone present as no lightning occured. And even with lightning I don't think enough ozone would be made for a people to smell. I recall hearing something similar to what DrDNA said, that the smell is from a rise in humidy causing a release of chemicals from soil/plants or something simimlar to that.

The smell probably wouldn't be that of ozone as before the lightning storm there would be little or no ozone present as no lightning occured. And even with lightning I don't think enough ozone would be made for a people to smell. I recall hearing something similar to what DrDNA said, that the smell is from a rise in humidy causing a release of chemicals from soil/plants or something simimlar to that.

Do you mean to upload and store information in the same way is can be stored on something like a computer hard drive?

In what way do you mean females have better genes? What sort of social and environmental impacts are you refering to? And how do these two points relate if it is not a genetic problem?

What do you mean by "Diploid Reproductive Cell"?

I've got an outcome for biology coming up and it's going to involve giving responses to questions all relating to genetic carrier screening of cystic fibrosis. My revision sheet mentions things like why humans should intervene if a person is a carrier, treatments, cultural issues, and also looking at both sides of the issue in terms of the screening. I really would appreciate any help in directions to resources people know of that relate to this kind of information. I've been searching madly on google and through some books and alot of what i need to know, but I haven't found much on information on not screening besides things like cost and belief. Any help for this would be great.

Well, we got told the answer and even though my formulation was different from what the best suited one was, my moisturiser still turned out to be fairly decent. I was surprised

I was in a chemistry competition today where people were given certain ingredients and instructed to form a moisturizer from them. We were told we could use some or all of the following... - Water - Cetiol CC - Isopropylmyristat - Emulgade SE-PF - Lanette MY The sample I submitted after a few trials with different combinations of ingredients and the order of adding was about 40g water, 2g cetiol, 2g lanette, and about 5g emulgade. It was a bit too oily I think, and I couldn't really tell how well it thickened as it was still fairly warm from heating. Just wanted to know if anyone had any ideas on what the right formulation should have been, because i'm curious on what I should have been doing.

Ahhh, that makes sense. And by the way, my teacher was actually refering to a question where it came down to x^2 = 25, so I now see how it works. Thanks!

This is a idea that came to me when my math teacher was stressing the point that we need to write that the sqaure root of 25 is 5 and -5, and that we must include that even when that answer can only be positive. So i was think that having the sqaure root of a number like 25 in an equation for a line would result in essentail two different lines. I don't really know if you're allowed to do something like that. For example: x^2 + 2x + 25^(1/2) So that could be either + 5 or - 5 as a constant, right? Please let me know if this makes any sense.

When it comes to tRNA molcules involved with translation, they each will have a certain anticodon so they can put in their amino acid when the corresponding mRNA codon comes up. But how many different types of tRNA molecules would there be? Because you can say there are 64 (4 x 4 x 4), however are there ones for the 3 stop codons? So I'm guessing either 64 or 61 (i'm leaning more towards 61), but can anyone help me out here?

Just been doing some work on acids and bases. I know that when you react an acid with a metal oxide you get a salt and water being produced. But a question I have asks for the equation when you mix lead sulfide and hydrochloric acid. Will you get lead cloride (the salt) and hydrogen sulfide produced? PbS(s) + 2HCl(aq) -----> PbCl2(s) + H2S(g)

I've heard/read that you can put a light bulb into a microwave and you get plasma being formed (I'm not sure if that's 100% right, but you do get light flashes from the globe). So I guess the same sort of thing is happening here.

Decrease

Thank you very much for that link

I know that when you rub a balloon against your hair or a piece of wool that electrons are stripped from them and go across to the balloon, giving the balloon a negative charge. And you can rub a glass rod with a piece of silk and the rod loses electrons, making it positive. But what I don't understand is why the electrons move across to the different materials. What property of the material determines whether it will lose or gain electrons? Any help would be great.

I read somewhere that after many, many years the rotation of the Earth will we slowed down so much that a one rotation would last for like a month or something like that. I was wondering that if over millions of years it's been getting slower, then at some stage in the past the roation of the Earth must have been very fast. Does anyone know how fast it may have once gone? Could once roatation (1 day) have been only an hour long?

I was wondering if anyone knew if there is a formula or equation that can be used to calculate certain variables when using solubility curves? I know that graphs can be used to oberve the curve and work out approximatly what the temperature or solubility is at a certain point. In particular I wanted to know if there is a way to work out or find an equation for calculating the solubility curve for potassium nitrate dissolved in water. Any help would be great.

Well, i'm not an expert in spiders but i would say that all these things would depend on the species of spider. Did you have a specific spider you needed to know this information for?