A few people said that they had a bit of trouble with the genetics lecture today and I thought that a few integral parts were skipped through and/or required a bit of assumed knowledge. Just to reaffirm all the stuff for myself I wrote up what I thought were the integral parts of genetics (hopefully in a well structured and systematic order). I tried to keep is as simple as possible, and it's only about a page of text(plus images). Bibliography-wise I used my yr12 bio text book, wikipedia and encarta dictionary (images have their source site as a hyperlink).
Anyway, I hope it helps :)
genetics.doc
Oh, and if there's any mistakes, please point them out in the comments asap.
6 comments:
I thought that was very well done stuart. I got a bit lost in class today but what u have done there has put a new light on it for me - a better light so to speak. I thought it was very simplistic and easy to understand. I see Heterozygous / Homozygous differences and Alleles dominant, recessive and co-dominance facts more clearly now.
Many thanks Stuart!! U are a big asset to this blog and class!!
what can I say...*pats stewy on the back* good work!! =)thanks!
Yes, I agree well done Stuart, thank you so much, its so nice of you to take the time to do this for us !
Thanks stuart,i had trouble today during class just following.Your help is greatly welcomed. Thankyou for taking the time to do this its a great help.Its not as if you don't already have enough to do. Thanks
Hi guys,
Hope you don't mind a lecturer posting here. It's great to see you using a resource such as this one for your learning.
Apologies if people got a bit lost in class on Monday - there was a lot to cover, and not much room for detail. Resource sessions are meant to provide you with some basic building blocks that you then need to further research and integrate into your other streams - they are not the be-all and end-all of your learning.
Stuart has done a good job summarising a number of the key points. Just a few minor changes
1. Pairs of chromosomes are 'homologous', not 'homogenous'
2. Strictly sepaking, the pink flower is an example of incomplete dominance, where the phenotype is dose-dependent. In this case, the 'red' allele is functional amd the 'white' allele is non-functional (i.e. absence of colour, rather than white per se)The red flower has 2 copies of the dominant allele, the pink flower flower has only one, and the white flower has none.
Codominance is where both alleles are expressed equally (e.g. the ABO blood groupings, where A and B are codominant, and a heterozygote has an AB blood group). The blood groupings are a good resource to try and get your head around issues of dominance/reccesiveness/etc...
Cheers,
Toby.
cheers Toby, I've made the changes and updated the file
1. gee -thats a pretty significant spelling error - sorry guys, the word is definitely homogulous (even if MS word doesn't like it)
2. yeah,..i kinda made that one up. I replaced it with the blood example.
Thanks heaps for the corrections.
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