Science is about:
- Elimanating the wrong answers
- Finding a pattern
- Sharing ideas
It's NOT about being right.
Nobody created all of science.
CC Blog #4
Wednesday, March 30, 2011
Pea Genetics and Heredity
We started class by going over our homework. The big idea is that we inherit physical and personality traits from our parent and other people in our family. We continued with our pea experiment. If you weren't able to get all the peas the same, you have to continue. If you did, you have to start over. In my group, we started with 2 wrinkled peas,one yellow, and one green. The first four times, we breeded two children that were exactly the same and the last time, we self-breeded one pea. Big Question: WHAT ARE WE DOING? Answer: We're developing a model to predict what the next generation will look like. Sample Prediction for breeding a wrinkled green and a smooth yellow: 2 green, 2 yellow, 2 wrinkled, and 2 smooth.
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ReplyDeleteAnother thing that we noticed was that breeding two different peas together, then breeding their children, can cause the new peas to have traits that its grandparents had and not it's parents. It might have recessive traits. Laryssa
ReplyDeleteHi everyone!!!! Ok so i will be explaining my groups model for science today. So first, we started out with one green smooth pea and a wrinkled yellow pea. The children were 2 smooth yellow peas and two smooth green peas. This was our 3rd atempt just so everyone knows. Before this in the 2nd round, we had 2 smooth yellow/ green parents and 3 smooth (2 green and one yellow) children+ one wrinkly yellow pea. We paired together one of the smooth green peas (RR) and the one wrinkly yellow pea (yY) to get the 4 smooth green and yellow peas. After we discovered this, our hypothesis was that the one wrinkly yellow pea will skip a generation becasue the kids of the green pea and the wrinkly pea didnt have wrinkly kids. So our prediction for when we paired one green smooth pea and one smooth yellow pea was that we'd end up with 2 smooth green peas, one smooth yellow pea, and one wrikly yellow pea becasue of the skipping generation wrinkly pea. when we paired the two smooth greean and yellow peas (Rr+yY) we got exactly what we predicted!!! @ smooth green peas, a smooth yellow pea, and a wrinkly yellow pea!! This proved our hypothesis that the one wrinkly yellow pea skips a generation of peas, meaniing that if both parents are smooth, one of the kids will be yellow and wrinkly. And if one parent is smooth and one parent is yellow and wrinkly, then all 4 kids will be smooth and 2 will be yellow and 2 will be green!!! I'm so sorry this sounds super super confusing but i'm sure ill be able to expalin my group's situation tomorrow in person!! Leave a comment below me if you have any questions!! Thanks!!!
ReplyDelete- Caroline S.
Explanation for the pea project of Me, Claudia, Sara, and Elizabeth.
Hey I just want to put up this picture. It goes alon with what Caroline said.
ReplyDeleteLink to picture:
https://docs.google.com/document/d/1b0YdtQwlJboR58NjBr0XeMFUQVJnWW2qf-JEIfvep-c/edit?hl=en#
-Elizabeth M.
Picture for what Caroline explained and Claudia, Sara, and I worked on in class.
I am telling you guys about what we found in our experiments:
ReplyDelete-In the beginning we had 2 green round and the children were 3 green round and 1 green wrinkled.
-Then we chose a green wrinkled and a green smooth and the children were 3 green round and 1 green wrinkled.
-Then we picked 2 green round and the children were 3 green round and 1 green wrinkled.
What I think happened was that the green wrinkled pea (in the last one) got its wrinklyness from its great grandparents because its parents were 2 green round and their grandparents were green and round but their great grandparents were 1 green round and 1 green wrinkled. If that isnt right I dont know how he could have gotten the wrinkled genes. IF YOU AGREE OR DISAGREE PLEASE COMMENT!!!
-Rachel K
wazzzzzz upp its Colin. here is what happened for my groups pea presentation. We started off with two green wrinkled and two smooth yellow. At first we got through five but our hypothesis was not universal. Then Garrett Mark and I looked at the letters below the peas. Garrett and I tested them with different combinations and our data was.
ReplyDelete2 yyrr- a green wrinkled= 4yyrr
2 YYRR- a smooth yellow= 4YYRR
2 YyRr or yYrR- smooth yellow= 3 smooth yellow and 1 green wrinkled.
1 yyrr and 1 YYRR or YyRr or yYrR= 2 green and 2 yellow.
At first this was a little confusing but but when i really tsted the numbers it made more sense. We still haven't figured out to word this into a hypothesis other than just saying what we observed. If anyone has any ideas on how we could word this or explain this please leave a comment
-Colin Forber
any questions.... just ask!!!!!!!!!!!
This comment has been removed by the author.
ReplyDeleteI agree with Rachel because it is possible to skip generations and just because the parent peas didn't get it doesn't mean a relative could have gotten. comment if im wrong.
ReplyDeleteallie m
im so lost....what do the letters underneath the peas stand for???? and did they help u in ur hypothesis?????
ReplyDeleteHelppp Meeeeee!!!!!
-TORI FUSCO <333333
TORIII- the letters are the chromosomes you silly gooseberry! They did help in the hypothesis becasue they explain that if you add this combo plus this combo you get this. THAT"S HOW IT HELPS CHICKABIDDY!!!!!!!!!!!!
ReplyDelete-caroline s<3
I agree with tori, we thought that lower case letters stood for one color, and uppercase for another. did anyone else come up with an idea about that??? I also agree with Rachel and Allie...
ReplyDeleteNatalie Z <3 <3 <3
I agree with Rachel too. In my group, Mary Kate, Allie, and I, we basically had the same thing as Rachel when we started off. At first, I didnt know what the letters at the bottom said too, but THANKS CAROLINE!(:
ReplyDelete~J0DI BULL =]
PERI0D 4
i am lost i think that this all means that the peas skip a generation and that way some are not the same as the parents they are like grandparents but i do not know how to get it on the simulation. sooo how do u do it?
ReplyDeletewill now can the peas look like there great grandparents and is it possible to just look like your repents?
areil=}
Heyy guys it is Sam here. I need help! i am stuill lost and confused! I dont get what the yy and rr things r for. Thxs!
ReplyDelete-Samantha Caggiano
Period 4
i am in Rachel's group, so of course i agree with her. for the 1 that rachel was talking about after she explained our model, that was the one where our prediction was wrong. i dont know why we had that all of them would be green ans smooth (if you are confused look at rachel's post). we should have predicted that 3 would be green and smooth and 1 would be green and wrinkley because that happened 2 times b4. i also agree with rachel when she said that the wrinkled green prob got its geenes from its "grandparents". i also agree with rachel saying that the wrinkled always being from the grandparents like they skip a generation like caroline said. im just confused on what the actual hypothesis is CAN SOME1 PLZ TELL ME????????
ReplyDeleteOk so in class we predicted that basically each pea skipped a generation..... I think I'm totally wrong so I would like to know what you guys hypothesized maybe that will help me understand better.
ReplyDeletethanks a lot, Chloe
Hi guys. If you are still on here, I just want to make sure that I am correct. If you have a pea that is green and smoothe and a yellow that is also smoothe, you have a 50/50 chance of getting 2 yellow and 2 green. You also can't have wrinkles, right? If I am wrong, let me know now or tomorrow. K?
ReplyDeleteLaryssa
I'm pretty sure you're right Laryssa.But you can only get wrinkles if one child is an "oddball" or if a pea's "grandparents were wrinkly.Hope this helps if you're reading this Laryssa and everyone else.
ReplyDeleteCC
Ariel: To get to the simulation, first go to Mr. Finley's website. Then, click on genetics (on the side). After this, click on "Pea Soup".
ReplyDeleteAlso, I agree with Rachel and Allie that traits can skip generations. I also had the same problem as Tori. I didn't know what the letters meant, either. Thanks Caroline!!
Mary Kate
Is it true that the parents cells split their genes equally. Like, for example, if one prent cell is yellow wrinkly and one cell is smooth green it has an even chance of every possible outcome.
ReplyDelete-Timpi
Sorry I'm late but to add to my groups thingy, I noticed that the yy and rr for the 2 parents are split up and combined in different ways to become the children. Think about what Finley said: you get half of your genes from one parent and half from the other. For example, we have a Yy, rr and a YY, rr. You will get new ones with YY rr, yY rr, YY rr, and yY rr. The colors, I'm still not 100% sure on but I know that yy rr= green wrinkled.
ReplyDelete-Mark V.
Hey! its claudia! Caroline explained everything our group has to say.....grrrrr caroline!!!! hahaha. But the gist of things that we tried to figure out how some types of peas(like their characteristics of the pea. ex: color, shape, wrinkles ect) skipped a generation. We saw that when we put a yellow pea and a green pea together we got a 1 yellow wrinkley pea. Then if we put the yellow wrinkley pea and a green pea together(from the children) you wouldnt get any wrinkles in the children peas. Its just like us. Sometimes some genes and characteristics skip generations.
ReplyDeleteAlso- we saw that from the R's from the parents mixed and matched-but they had a pattern!!!! From the Mama Pea R patttern was "Rr". Then from the Daddy Pea the R pattern was "rR."
Then for the children-an R from each parent was mixed to make the child.
The 1st Pea Child's R combo was "Rr"
The 2nd Pea Child's R combo was "RR"
The 3rd Pea Child's R Combo was "rr"
The 4th Pea Child's R combo was "rR"
the children made combo's from the parents R's.
I think the R's are genes because the parents R's come together to make the child unique and the way it is.
I hope this wasnt too confusing!!! I will explain with pictures tommorrow in class(:
Claudia<33
wait!!! so the peas skip a genreation? How though like im still confused! and claudia if you put a green pea and a yellow wrinkled pea together you get no wrinkled peas? but then what about the colors are they the same as the parents or are they all different. like is there another odd ball ....like only one yellow or only one green?..im confused!!!!!! :/
ReplyDeleteShnookie...aka Leandra V.C.M <3 ;) :) <3