khanhdoyo Posted May 15, 2013 Report Share Posted May 15, 2013 Hi guys!I have questions about bio SL paper 1 TZ2.The third question about what initiate the differentiation of stem cells(or something like this), what is the answer?Is it C) the express of some genes and supression of some genes or B) the specialized functions during the embryonic development??I thought about C first because the differentiated cell express some genes but later on I read the words "initiate" the differentiation, then I didn't know what to do and hence, I chose B.Another question is about the pedigree chart and affected and unaffected parents. WHat is the trait of the disease? Autosomal dominant allele, autosomal recessive allele or sex-llinked allele? Reply Link to post Share on other sites More sharing options...
ib252 Posted May 15, 2013 Report Share Posted May 15, 2013 Hi guys!I have questions about bio SL paper 1 TZ2.The third question about what initiate the differentiation of stem cells(or something like this), what is the answer?Is it C) the express of some genes and supression of some genes or B) the specialized functions during the embryonic development??I thought about C first because the differentiated cell express some genes but later on I read the words "initiate" the differentiation, then I didn't know what to do and hence, I chose B.Another question is about the pedigree chart and affected and unaffected parents. WHat is the trait of the disease? Autosomal dominant allele, autosomal recessive allele or sex-llinked allele?I chose C) too for the stem cell one.For the pedigree chart I'm pretty sure I chose sex-linked recessive Reply Link to post Share on other sites More sharing options...
Jamal102 Posted May 15, 2013 Report Share Posted May 15, 2013 For the traits one I said sex-linked. Because I noticed every male had it. But I'm not sure. What did you put.And for the segmented joint appendages think did you choose annelida or anthropoda Reply Link to post Share on other sites More sharing options...
maereth Posted May 15, 2013 Report Share Posted May 15, 2013 Hi guys!I have questions about bio SL paper 1 TZ2.The third question about what initiate the differentiation of stem cells(or something like this), what is the answer?Is it C) the express of some genes and supression of some genes or B) the specialized functions during the embryonic development??I thought about C first because the differentiated cell express some genes but later on I read the words "initiate" the differentiation, then I didn't know what to do and hence, I chose B.Another question is about the pedigree chart and affected and unaffected parents. WHat is the trait of the disease? Autosomal dominant allele, autosomal recessive allele or sex-llinked allele?I chose B, because specialized functions during embryonic development didn't seem right.. but maybe I didn't understand it properly as to the pedigree chart, I figured it was autosomal dominant (autosomal mean non sex linked right? ) and I'm pretty sure I was right here. And if I wasn't, you don't have to tell me this, I'll get to know in July ;p Reply Link to post Share on other sites More sharing options...
Da Wong Posted May 15, 2013 Report Share Posted May 15, 2013 WAHH I was afternoonPaper one was easy, except I know I have some wrong answersPaper two was easy, I studied cell resp. for nothingPaper three was just confusing... The Robins flew at day right? ARRGHHH whenever I think something was easy, I fail it. Reply Link to post Share on other sites More sharing options...
Meena Posted May 17, 2013 Report Share Posted May 17, 2013 For the traits one I said sex-linked. Because I noticed every male had it. But I'm not sure. What did you put.And for the segmented joint appendages think did you choose annelida or anthropodaI chose anthropoda because it had an exoskeleton. I also chose sex-linked by most of my class did not. They chose the one with the a.... something, I don't know because I'd never heard of that before. We had a huge discussion on it after, and everyone seemed to have a good justification for what they chose, so I'm really unsure about that one... Reply Link to post Share on other sites More sharing options...
MylakIB Posted May 17, 2013 Report Share Posted May 17, 2013 It was for sure autosomal dominant Reply Link to post Share on other sites More sharing options...
q8adz Posted May 17, 2013 Report Share Posted May 17, 2013 Which questions were most challenging for your on Paper 2 Biology SL? Do you remember if there was anything on DNA replication, Transcription & Translation? Reply Link to post Share on other sites More sharing options...
IBisfunjustkidding Posted May 17, 2013 Report Share Posted May 17, 2013 (edited) I'm TZ1 but anyways for paper two there was barely anything about transcription and translation but there might have been for TZ2. Paper two was actually alright as opposed to paper three... Edited May 17, 2013 by IBisfunjustkidding 1 Reply Link to post Share on other sites More sharing options...
cjy Posted May 17, 2013 Author Report Share Posted May 17, 2013 There was nothing on T&T Reply Link to post Share on other sites More sharing options...
Tina St Posted May 20, 2013 Report Share Posted May 20, 2013 I found paper 2 relatively tricky and I think I aced paper 2 Reply Link to post Share on other sites More sharing options...
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