Saturday, June 21, 2008

genetics lab




















fly punett squares scenario 5 & dragon genetics lab results

genotype : the genetic makeup of an organism wich is affected by a single trait or a set of traits. In the fly experiment,the offspring are affected by the parent's traits;one quarter pure straight winged flies, one half hybrids, and one quarter crooked wing flies.


phenotype : the physical appearance of an organism.in the dragon genetics lab,changing specific genetic traits would either alter the existence of a certain trait or change it to something else completely.In the fly punett square scenario,the phenotype depends on the dominant and recessive traits.


allele : alternative form of a gene.found on chromosomes.The allele is the either capitalizad or non-capitalized letter that you find on the fly punette square.the dominant alleles are capitalized and carry the traits which will be more prevalent.On the other hand,the recessive alleles are uncapitalized and less prevalent.

cross:when two organisms mate they each donate several chromosomes to the new organism.in the fly punette square, the cross of straight and wrinkly wing alleles means that there is a 75% chance of the baby having straight wings,a 50 % chance of being a carrier for wrinkly wings but still having straight wings, and a 25% chance of acquiring wrinkly wings.the wrinkly wings are a recessive trait and therefore need to have bolth recessive alleles for this phenotype to occur,otherwise the dominant allele will have full controll over the physical appearance and straight wings will occur instead of wrinkly wings.















Thursday, June 12, 2008

how to work a microscope






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a pine tree stem
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dyed bamboo shoot
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The bottom two pictures are on some different thigs you can see by using a microscope,the top one is a onion leaf,and the picture just below it is a microscope(operating instructions below).





step 1: make sure you have ALL your equipment ...okay? good!:)


step 2: turn on the light using the light switch located on the bottom portion of your microscope,adjust the brightness using the brightness adaptor, and adjust the focus of the beam(that's the light shining through the bottom).

step 2b:lower stage to lowest point


step 3: place specimen under microscope and secure with stage clips(what's that?...no, of course it's not going to run away!why would you say that?...HUH? AAAAAH!OMG!!!![eheh, psyche]...)


step3b:use XYcontrols to adjust specimen over light in center of stage

step 4: switch objectives to lowest power magnification


step 5: adjust oculars




step 6: look through oculars and raise specimen slowly so that specimen is seen in views






step 7: use fine focus to view (adjusting light at this time is also suggested as the view may be too bright:D)


and that's all for today folks!

author is sighning off

untill nex time doods!

Monday, June 9, 2008

hey to the rest of class!

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rebecca m

I don't have a fave artist, but i like all sorts of manga styles

I am taking this class as a prerequisite for the yc nursing program

I hope to acheive a higher knowledge in the world of boilogy

I am an awesome artist,there are NINE kids in my family,and Iam way too short to be 18...

wheww!

alright, I totally was running in circles!
...at least I think I was...
anyway,mom and dad sighned me up for this college class, and I just BARELY got on, I mean,the welcome e-mail says sighn up by FRIDAY and here I am on monday right after psycology class FINALLY sighning on...
Well,now that i'm in thats a good thing:)
later doods!