In a create a baby lab that I participated in with a fellow classmate, we would flip a coin to see if certain traits such as mouth shape, nose size, even the presence of dimples would show up on our "baby" based on the predominincy of our genes. In order to get the certain Genotype that we were sposed to be carrying to pass on to our baby, we would flip the coin twice to either get a predominint, or dominint homozygous gene, or a heterozygous gene.
Now, the best thing about this lab is that it gave me one heck of a better understanding of how genes can be passed onto the child of new parents. Well, Bikini Bottom Genetics lab helped out with recessive genes as well. But any way, when you have both parents carrying homozygous genes of a particular trait, it a pretty good chance that your going to have that trait show up on the child, whether it's a dominint, or predominint trait. But, when you have heterozygous genes being carried by just one of the parents, then things start to become a gamble. You don't know what the baby will turn out to be like. For example, if the genes are represented by letters lower and uppercase to show hetero, and homozygous genotypes, then two sets of capitals such as (DD, DD) combined will 100% show up on the baby. But when you get something like (DD, Dd), the chances reduce because of the fact that heterozygous genes (Dd) are recessive, and can be skipped a generation.
One of the biggest things that I needed to get some comprehention on was the Pheno, and geno. But, i learned that recessive genes tend to be a genotypical subject becuase of the fact that recessive genes ane hidden most of the time. Meaning that you can't see them phenotypically. When you can see them Phenotypically, then you got dominint genes that were passed on. If that didn't make sense, let my clarify. Phenotype is the genes you can see because they show up on the child, and Genotype is the genes that the baby is carrying, but doesn't show. The phenotype can be either be dominint or recessive because of the game of chance, but all genotypes are recessive based on the fact that they didn't show up on the child. But don't think the Genotypes can't become phenotypes. The genotypes lie inside the baby, waiting, lurking, for their chance in later days when the baby grows to be an adult and reproduce. The recessive genotype could turn into a, dare i say it, phenotype.
The labs brought me up to a better par on how genetcs work, i just need to get the vocab matched up and what not so i can have some what of an expert understanding. But, i do know why i look more like grampa than i do my poppa now, so i guess i got SOMETHING outta these labs.
Sunday, January 23, 2011
Tuesday, January 18, 2011
the things I'll wish I woulda known
As I skimmed through the LONG passage/speech thing that this guy wrote, I noticed a few things. He put allot of time into it, allot of analizing of different point of views, and allot of typing. I did like it quite a bit though because when you think about it, many teens do end up making the wrong decision right after highschool about what to do cause in todays society, its almost like you HAVE to know what your going to do after words. He is so reassuring in his words its amazing. almost comforting. I myself have been racking my brain trying to think of what i'm going to do after i graduate. I do know that i DON'T WANT TO SIT IN A CUBICAL ALL DAY!!!! I think as long as I don't have to do that, I'll be pretty o.k. with what ever i end up doing. but then i really get to thinking sometimes. And there is a couple of words that he mentioned in his passage about not letting other peoples opinions get to you and that is one of my biggest things. The things I happened to accel at and accomplishments i've made all came when i just shut off every one elses' voice, and did what came natural. Just went with the flow. like he had said in the passage. This man knows his stuff. And i do also believe i'll be showin this to some people. This material is uplifting, good quality stuff. i do believe that I can honestly say i'll be refering back to it too.
Sunday, January 16, 2011
Meosis
So we got MITOsis, which is the asexual reproduction of cells in plants. But then theres MEOsis. Meosis is the sexual reproduction of organisms' cells. When meosis takes place, there are a couple more stages that take place which differ from the mitosis process. For one there is no S phase in meosis. And there are 2 phases of metaphase, and anaphase. Before meosis can take place, the chromosomes (all 46 of em) must be assambled. Then it can begin to divide. Meosis requires even numbers of chromosomes to begin. Then they turn into bivalents. Then the bivalents divide from oposite poles and seperate. Then telophase as usual, and eventual complete division of the cell.
PS. i'm pretty glad i did this post cause if i wouldn't of done at least this much on the subject, i would be completly lost. It's comin' back to me now though, its all comin' back to me.
Friday, January 14, 2011
Cells of stem (Stem cells)
Stem cells that reside is our bodies as we grow and mature are the construction workers of the society of the inner workings of our bodies. That is, when we are 5 day old fetuses any way. Stem cells, depending on what type, from from 2 places. Embryonic Stem cells come from, well, a 5 day old fetus. And semantic or non-embryonic stem cells come from the organ, and our tissues. If you think about it, the word EMBRYOnic kind of gives away the origin of the cell.
I learned that the stem cells that are derived from embryos are only, well, DERIVED from embryos. Not taken from an imprenated lady. I mean, the ladies have to donate the egg, but the ladies aren't pregnant when they "abtain" the egg. ANYWAY, from there, the confusing stuff is all done in the lab.
Wtih stem cell research that is taking place, there is a wide variety of great things that are possible to take place in the medical feild. Cause if the studies that the scientist are doing on the star fish and rats turn out to work, then i would like them to use it on me. I got a finger thats missin a nail, and is fractured. O and it hurts like heck. Thing is, I gotta wrestle next thursday, cause its the LAMAR dual. Maybe stem cell research could get me fixed before then.
I learned that the stem cells that are derived from embryos are only, well, DERIVED from embryos. Not taken from an imprenated lady. I mean, the ladies have to donate the egg, but the ladies aren't pregnant when they "abtain" the egg. ANYWAY, from there, the confusing stuff is all done in the lab.
Wtih stem cell research that is taking place, there is a wide variety of great things that are possible to take place in the medical feild. Cause if the studies that the scientist are doing on the star fish and rats turn out to work, then i would like them to use it on me. I got a finger thats missin a nail, and is fractured. O and it hurts like heck. Thing is, I gotta wrestle next thursday, cause its the LAMAR dual. Maybe stem cell research could get me fixed before then.
Mitosis
Mitosis occurs in different phases. There is a beginning stage of it where the cell is at rest, and does not change its' nucleus in any way. This is also known as interphase. But then, the cell enters a phase called prophase. Pro, meaning beginning or before, is the first actual phase of mitosis. In prophase, the cells chromosomes begin to shorten and thicken and start to begin to segregate.
Then in the metaphase, the spindles inside the cell begin to separate and align inside the middle of the cell. Then, anaphase kicks in. This is when the spindles have each separated evenly to one side of the cell and begin to split it in two. Then in Telophase, the cell is pretty much completely split in two, and the cytoplasm of the once one complete cell, has been divided by a not yet complete new cell wall. Then the wall forms and it has been divided into 2 daughter cells.
In a lab that me and a few class mates recently participated in, we examined the number of cells that were in interphase, anaphase, prophase, metaphase, telophase within a certain view through a microscope. Out of around 250 cells that were in view, 46% of them were in prophase, and 47% of them were in interphase. Those 2 phases were pretty much the majority. Then 2% or so was the amount for telo, meta, and anaphases. This kinda gives you an idea of how long each phase takes compared to the other. The phases that have the most being seen must take longer to complete thats why you see so many of them. The smaller percentage is less time taken to complete the process so then you don't see so many of them.
Then in the metaphase, the spindles inside the cell begin to separate and align inside the middle of the cell. Then, anaphase kicks in. This is when the spindles have each separated evenly to one side of the cell and begin to split it in two. Then in Telophase, the cell is pretty much completely split in two, and the cytoplasm of the once one complete cell, has been divided by a not yet complete new cell wall. Then the wall forms and it has been divided into 2 daughter cells.
In a lab that me and a few class mates recently participated in, we examined the number of cells that were in interphase, anaphase, prophase, metaphase, telophase within a certain view through a microscope. Out of around 250 cells that were in view, 46% of them were in prophase, and 47% of them were in interphase. Those 2 phases were pretty much the majority. Then 2% or so was the amount for telo, meta, and anaphases. This kinda gives you an idea of how long each phase takes compared to the other. The phases that have the most being seen must take longer to complete thats why you see so many of them. The smaller percentage is less time taken to complete the process so then you don't see so many of them.
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