spottedlizard20

BSc Biopharmaceutical Sciences majoring in Genomics

*shakes head*

With many dancing bananas

Lol!!

Hey thanks faf! The molarity formula really helps out a lot I don't know how come I couldn't find that in my text, grrr... And about the bacterial death rate... it actually occurs exponentially. Should I be plotting data on a logarithmic sheet of graph paper and then determining the D-value?? That seems like a lot of work though. My prof was using a calculation whereby he was moving around decimal places (it was supposed to be a simplified calculation!). The general idea is that if you initially have 10(12) cells, and then you heat them for a minute and have 10(-1) cells, the D-value is 13 minutes because you move the decimal by 13 places. But what confuses me is the fact that I'm starting with 8x10(5) cells and ending up with 4x10(3) cells. It's the damn 8 and 4 that are screwing me up and I don't know how they affect the calculation. Going by the prof's method, the D-value would seem to be 2 minutes... but I really think that is wrong...... That doesn't seem to fit at all :s

I'm having some serious issues with my microbiology homework :s We have to calculate the decimal reduction time and I'm completely confused as to how to do this. If, say, we start with 800,000 cells initially, and after 60 minutes we have 4,000 cells remaining, how am I supposed to figure out the time at which 90% of the cells are dead?? I'm also having issues remembering how to calculate the number of moles of a compound from general chem. The formula I am using requires a mass when all we have is a volume and no density to convert it. I'm trying to calculate the number of moles in a 2mL solution of 25% NaCl. I need this value in order to determine the aw (available water). If anyone could give me any pointers, I would really appreciate it

Do all plant species have a male and a female form? I know with some varieties of plants you have to have a male and a female form close by so that they can cross polinate and produce seeds, but not all plants produce flowers do they? Is this like a haploid thing or someting where some types of plants can produce seeds on their own without polination and others require polination to produce seeds? I was also wondering, for the varieties of plants that do produce male and female forms, what determines this? Do they have a type of X and Y chromosome like humans or is this something that is influenced by the environment (like in turtles, you can incubate their eggs above or below a certain temperature and produce different sexes because of the temperature at which the egg was incubated). Someone was saying that the crimson king cultivar variety of maple trees, when they produce progeny from their seeds, there is only about a 25% chance that the progeny will remain a crimson king and not revert back to the original cultivar variety. Is this some type of recessive genetics?? Could we not simply fertilize one crimson king maple with pollen from another crimson king and produce all crimson kings?? We can do that with recessive animal phenotypic characteristics if we want the progeny to all exhibit a given recessive allele... I realize it is possible that a parent crimson king was mated with a different cultivar variety as they are very closely related types of plants, I thought maybe this would somehow influence the progeny reverting back to the original variety and the probability of producing a crimson king from one of these seeds. Any input you may have would be GREATLY appreciated Thanks a lot!!

Blike, I am always impressed with your posts! How did you get to be so smart?? Do you study all the time? What's your trick? How do you have time to do anything else but study?! I must say, I'm quite a bit jealous of you! I wish my brain knew as much as an ounce of yours does!!

I'll be taking Molecular biology, Microbiology, Microbio lab, Genomics, and Cell biology. Fun stuff!

I think what blike meant to say was that the gram - bacteria have lipopolysaccharides in their outer membrane. This is what distinguishes the two types. Both the - and the + bacteria have peptidoglycan. This is actually why gram - bacteria do not take up the gram stain, the lipopolysaccharide covers the cell membrane and excludes the stain.

I completely agree that maintaining the environment is that hard because in a sense it has always been able to maintain itself, but it is hard because the environment adapts to changes slower than we want it to. We are in essence almost pushing the environment to the extreme by demanding so much of it's limited resources. But I guess I am also a hypocrite because for as much as it is nice being in the forest, it is still nice to be in the city and to have all the things that we do have. I guess maybe it's a bit different in Ontario and such, no one really lives in the north. You can go up there and it's virtually untouched by people, and then you come south, like where I am living, and there are barely any trees and it is the saddest thing ever. But despite all that, I think that one thing that really destroys the earth are disrespectful people. People who don't respect the preservation of what we have and who don't respect other people enough to care that in a couple of decades this might not be here for our children and their children. There are too many people out there who just care that they have this and to hell with the fact that if WE don't take care of this, no one else is going to be able to enjoy it either. Personally, I think venturing into a perfect untouched piece of forested land is one of the most exhilirating things in the world. I want as many people to enjoy that as possible. I just think people need to have a lot more respect, and take the time to listen to people and learn from them before judging them. I guess that's my rant for today

Thanks Dudde!

Are you from Ontario also? I'm living in Windsor with my parents over the summer, but I go to school up in Ottawa. Hmmm... I noticed you posted that a while ago, sorry it took me so long. I've been up north on a camping trip and I just got back....

Country music is pretty cool. I love "up" (it pretty much describes my life around the time of final exams!). But Tim McGraw is my fav. He's the one who's real easy on the eyes! And I think Blike looks pretty good with that hat on if I do say so myself!

I know who the Red Hot Chili Peppers are- and I'm not American. Actually I am Canadian I like the RHCP (they aren't my fav but they are pretty good). But somehow I guess I thought they were from overseas.... oh well.

My username is pretty straight forward. I like lizards.... Sometimes I vary it up a bit and choose a type of lizard to use as a name, but usually it has something to do with lizards. And the 20 is just because that's how old I am and I couldn't think of anything more creative... I guess it's going to be a little outdated in a few months but oh well! My name is actually Amanda, but that is a pretty boring name if you ask me....

Hmmm... It's pretty neat that they can do that. And although I do feel sorry for the poor guy, I can't help but think that he was pretty stupid to have urinated on something like that.... Maybe next time he will keep it zipped up!

I have seen something about this a while back. It had something to do with a heart transplant patient who knew things about the donor that only the donor and his family would have known. I've also heard of people who, after having had an organ transplant, exhibited personality traits like the donor, though the two individuals had never met before. I've always thought it was kind of interesting but I never really paid too close attention to it.

Your question intrigued me. I've never seen slugs eat worms, or any other dead animal for that matter. So I did a little reserach. Here's what I came up with: There is a type of slug, the Black Slug (Arion ater) which apparently eats plant seedlings in the spring, but also eats rotting vegetation, fungi, manure, and dead animals. Once these food sources depleat it goes on to eat plants in the garden. As a result it isn't as destructive as the other types of slugs to the plants. Good for the garden, bad for the bugs I guess. Judging from this bit of info, it is quite likely that when you die these things could be feeding off of you. They do tend to get to around 20cm in length. Personally, I would go for cremation. The thought of myself becoming food is kind of revolting, but then again, I guess that's just how the food chain goes!