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The Biochemist






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The Biochemist

 

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A biochemist follows scientific methods every day. A hypothesis is made and a biochemist sets out to prove it right or prove it wrong. View Margit's video to see her daily duties as she develops ways to genetically transform corn. It's a fascinating process that fulfills her dream of making scientific discoveries!


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Take the Challenge

Now that you've seen what a biochemist's day can be like, see if you have what it takes to do the job by performing a challenge activity. Read the "Set Up," then figure out the questions. Check your answers when you're done.

Set Up:
You have a transgenic maize plant containing two traits (i.e. herbicide resistance and insect resistance) that have integrated independent of each other on different loci and are heterozygous at the F1 generation. Both traits are single copy and show no rearrangement of the transgenic expression cassette by Southern blot. The plant is self pollinated.

Figure This Out:

Question 1
What segregation patterns would you observe for the two traits in the F2 progeny?

Check your answer!

Question 2
How would you fix or stabilize the traits in the maize plant containing both insect and herbicide resistance in subsequent generations?

Check your answer!

 

Next: Ask the Biochemist

 

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