CROSSES (WITH LARGE PROGENIES) AND PEDIGREES

Today we looked at how to use phenotypes of parents and their offsprings to determine:

- the mode of inheritance of the traits in question (what is dominant to what, and whether the traits are autosomal or sex-linked);

- the respective genotypes of parents and various individuals in the offspring.

More info on pedigrees on the paper-saving page...(see link on the right).

For better results in 334, remember to:

- define your symbols, if you introduce any (e.g. if you decide to use "L" for "long" and "l" for "short", indicate so)

- justify your answers, for example by showing that if you give your individuals the genotypes that you claim are the correct ones, and you do the crosses indicated in the question, you obtain the same result as that indicated in the question.

- be consistent... if you claim that A is dominant to a, this has to be true for the whole question! You can't switch halfway through...

On Thursday we'll do some pedigrees with probabilities and some work to relate meiosis to Punnett's squares and crosses.

Cheers

Pam

TUTORIAL TIME CHANGE

Important announcement:

our tutorial will now meet at 1.30 and run until 3.30 (still in BIO2000).

Also...

what did we do today? 

--> Meiosis

--> Relationships between DNA, DNA strands, chormatids, chromosomes, etc.

--> a brief review of transcription and translation (pretend to be the RNA polymerase...pretend to be a ribosome...).

Check the paper-saving page for more details (link under 'useful links').

Cheers

Pam

GREETINGS, BIOL334 SUMMER 2009 STUDENTS!

Welcome to our virtual tutorial space!

I set up this blog to allow communication between you and your TA, but also among all of you, to continue outside tutorial hours. In this space you'll find announcements, links of potential interest (under "useful links"), some notes and summaries, additional practice questions (at your request), suggestions regarding helpful problems from your texbook that you can work on, and other resources that have helped previous BIOL334 students.

The 'paper saving page' link will send you to a site full of electronic 'handouts'. Some of the work that you'll do in the tutorials will be posted there as well (with your permission, of course).

This is also a great place for you to ask questions, answer your classmates questions, make requests, comments, etc... it's very similar to WebCT/VISTA, just less high tech and more 'relaxed'.

I am looking forward to working with all of you this term!

Cheers

Pam