1. Visit the following link: http://www2.edc.org/weblabs/SexDetermination/sexdetermination.html
2.Post a comment that includes the following:
a. Your general reaction to the site
b. At least two specific things you liked about the site.
c. One suggestion for improvement.
d. An answer to the following question:
Two students are arguing over which parent is most responsible for producing a male offspring which shows a sex-linked recessive trait (such as colorblindness). Student #1 argues that the mother is most responsible because boys get their only X chromosome from their mother. Student #2 argues that the father is responsible because he gives the "Y" chromosome to his son and, therefore, doesn't contribute another "X" that might possibly cover up the recessive allele he got from his mother. Which student you think is correct and WHY?
DUE Friday, APRIL 23, 2010
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a. I thought this site would be helpful for someone who missed class, but it pretty much restated everything Mr. B has said in class.
ReplyDeleteb. I liked the interactive part of this site, and the way it explained things.
c. One suggestion would be to add info that we haven't heard yet.
d. They are both correct. It takes two to make a baby, and they both add something to mess the child up. (jk) :)
In general I thought this was a good site. Some things that I liked about this site were that it showed you the separation of the sex chromosomes after meiosis and let you match the different sex cells. I also liked that they had you combine certain cells to get the colorblind girl. The one thing that I didn’t like was the amount of reading it has. I don’t want to spend my time having to read while I’m on the computer. … As for whom I think is responsible for the showing of genetic trait, I think both are responsible. Both the students had reasonable answers as to why it’s the one parents fault. The mother does give the X chromosome with the recessive trait and the father does fail to give the other possible X that might cover up the recessive trait.
ReplyDeleteI like these types of sites, but this one wasnt my favorite. I still liked how it let you cross things and see how it would come out. I would also like it to change a little. There was alot of reading. The less reading there is i think the more i understand it. In general this site was ok.
ReplyDelete---alissa
1. I THINK THAT THIS SITE WAS HELPFUL BECAUSE IT RE STATED WHAT MR. B HAS TAUGHT US.
ReplyDelete2. IT GOT US INVOLVED, SO WE CAN LEARN.
3. WE COULD SEE HOW A BOY OR GIRL WAS FORMED.
I DIDN'T LIKE THIS SITE BECAUSE YOU COULD CLICK RIGHT THROUGH IT, SO YOU REALLY DID NOT HAVE TO READ EVERYTHING.
1. This site was easy to do because Mr. B has taught us the same things in class.
ReplyDelete2. I liked the way it explained everything to refrest our memories. I also liked combining certain cells to see what one was the color blind girl.
3. I didn't like this site because there was a lot of reading. I got bored which didn't help me focus. Make paragraphs smaller.
In general this site was descent.
I think both parents are correct because they had good reasons why it was one parent's fault.
This is Maddy on Mariah's account. I don't know my password.
Like everything there was things I liked about this site and things I didn't. One thing I liked was, it was easy to follow; I didn't need helping I knew what I was doing. This wasn't my favorite one however, I thought there was a lot of reading. One more thing I liked was this was everything Mr. B had taught us.
ReplyDeletea. like the rest it had eay to follow step by step directions and it was easy to figure out.
ReplyDeleteb. pistures and words are easy to understand and its an easy topic to learn.
c. maybe some shorter sentences.
d. i think that student #1 is right because the y chromosome does not hold the allele for colorblindness and therfore the mother is responsible for the trait since it was recessive in her but in the son it has nothing to cover it up.
A. this was easy to follow and and was step by step.
ReplyDeleteB. this got us involved so we could understand it.
C. there was a lot of reading and by the time you got done you had to read it again because you forgot everything you have already read.
D. i think they are both right because it takes two to make a baby
A. I thought this website was a great learning tool. It showed you the process step by step and allowed you to try more than one combination.
ReplyDeleteB. I thought it made things more understandable since you could experiment and try different combinations as you went. Also, I liked how the website had explanations under each picture. You could read through it, in case something was not clear.
C. I did not like how you could just click through it and not have to read or do any of the activities.
D. In my opinion, the father is most responsible for the colorblind child. I think this because the father did not contribute to the X chromosome and try to cover up the other allele that is colorblind.
Generally, I thought this was a pretty good site. To improve this sight, I think it could be a little more interacting. I liked this site because it has me choose which sex chromosomes would make a colorblind daughter from the parents. I think you could easily say that it's the mother's responsibility because if a daughter were to get the recessive allele "X" trait from her dad, then I would say it should be the mother's responsibility to cover up the recessive trait if she had the dominant trait. In the case of having a son, it's the mother's responsibility because the dad doesn't carry a sex-linked trait on the "Y", so the mother would need to give the son the dominant trait.
ReplyDeleteI think this was a pretty good site for sex-linked chromosomes. I liked how it gave a lot of information about how they offspring get their traits from their parents. I think this site could use a little more activities that make us figure out how and why the offsping get the traits from their parents. I think the mother is the one that is responsible for the son being colorblind. The dad only has one X and a Y so the mom would have to have a dominate trait to make the son not colorblind.
ReplyDeletea. I liked the site, because it required interaction.
ReplyDeleteb. Being able to do things, and it showing examples.
c. Maybe make it more interesting to teenagers who use it.
d. I think the mom would be responsible because the dad gives both, and eventually it his her trait that makes it domiant.
A. I liked this website. I liked how you got to interact with the website. I thought it did a good job on showing step by step process. I also liked how you can do different combination.
ReplyDeleteB.I liked how it gave good imformation and it did a good job on showing you how to cross.
C. I think there was to much reading and add imformation that we haven't heard yet.
D. I think the father is responsible. The father didn't have another X chromosome to cover up the allele that made the child colorblind.
I think that the site was very good because it was interactive. This site was very interesting, and i learned alot about sex linked traits. The could of made more slidev for more traits. I think it is the fathers fault because he only has one x so he can not have a cover up to the trait
ReplyDelete--Leah--
ReplyDeleteA). I liked this site.
B). It was interactive. We got to choose the calls we gave to the child and and if it would be colorblind or not.
C). To do the cross more than once, and compare the choldren. (see if they are carriers or not)
D). It dose take two to make a baby, but I think it's both their fault.The dad only has one chance to make the girl right(If he is a carrier or recessive), for a boy on the other hand it might be okay. Unless the mother contrubuted her little "c" and so did the dad, the baby is screw either way. So there for its both their fault. You cannot put the blame on one parent.
While visiting this site, I have one negative comment to express. I think that the site could have used a little more interaction with others. Otherwise, the site was pretty good. It explained information well, and it gave great examples.
ReplyDeleteI think that both students are right in their own ways. The mother does have to be a carrier of the trait, yet the dad almost has to have the trait. They both pass their traits down. The father either gives an "x" or a "y" to his children, whereas the mother gives two "x's." So, in both situations, both of the students could be right.
I liked this site because I got to choose what I thought was right. This was basically a review for us. Two things I liked about this was you got involved and it was step by step. But there was a lot of reading and I think they both can be right fir different reasons
ReplyDeleteA. In general I thought the site was very good.
ReplyDeleteB. This site was very interactive and it also it let you choose the children that were colorblind.
c. Seemed like a lot of reading and rereading.
D. It is both of the parents fault because dad only has one X chromosome so if it is a recessive or defective chromosome then the child will have it. And mom is too because she can be the carrier for the trait but not represent it because she has a dominant allele to cover up the defective one. The students could both be right.
I liked this site because it let you choose which cells to fertalize and it told you if that was correct or not. It also told you if the child turned out color blind or normal visioned. I don't think this site needs any improvement because it helped me a lot already. I don't know what it would improve on if it did need improvement. I think student number one is correct because they only get x chromosomes from their mother.
ReplyDeleteI liked it was different then what it normaly is. What I like about this was that it explained how the females were less likely to get a ressive gene on the X chromesome because they recive two but he males only get one X chromesome. another thing I liked was that you could cross them as many times as you wanted so then if you thought that it wasn't going to be the same you cold check to be sure. An improvment it could use is not to use the letter C, because it was harder to see what one was which. To answer your question they are both right but they could both be wrong beacuse the X that the child got from the father could have had it and it would have the same effect if it was a girl.
ReplyDeleteI would say this was a pretty good site.
ReplyDeleteIt was interactive. it let us choose the colorblind childrem.
I didn't like how there was alot of reading.
I think they are both right. they're just kind of explaining it in different ways.
I thought this site would be helpful for someone who missed class. I like combining the cells. It help me out a lot. It was pretty fun and lurned a lot from it.
ReplyDelete