UNIT
4: GENETICS & BIOTECH
FACT: SCIENTISTS ARE DEVELOPING NEW KINDS OF CORN
WITH TRADITIONAL GENETICS AND WITH BIOTECHNOLOGY
LESSON
1: Rate that Trait (Math)*
LESSON 2: Genes-R-Us
(Science)*
LESSON 3: Wonder Corn
(Multidisciplinary)*
LESSON 4: Farm
or Pharmacy? (Science, Social Studies, Current Events) Jr. & Sr.
High Students
* All Lesson Plans
are adaptable for ALL ages!
ELIZABETH
LEARNS WHY SHE HAS BLUE EYES
The day Elizabeth
turned 16 she took a hard look at herself in the mirror. "It'll do,"
she thought, and smiled.
Her eyes were very
blue, like her mom's, unless she was wearing her green contacts. Everyone
said she looked like her mom. But her hair was thicker, and she was
taller. Her teeth were straighter too.
"You're a hybrid,"
her mom always said. "You have the best characteristics from both your
dad and me. You have the worst too. But in most respects you're an improved
version. That's what hybrids are. Corn breeders choose parents with
desirable qualities, then improve them in the next generation."
Elizabeth didn't
like being compared to a corn plant. She was tired of her mother using
agricultural examples for everything. She was going to become a pediatrician
and help save the lives of sick children. Corn was not her thing.
Well, on second
thought, maybe she'd become an archaeologist. When she was 13, a group
from the university had been studying the site where Native Americans
had lived on her farm 1,000 years ago. She'd joined them for a few days,
sifting dirt for arrowheads and pieces of pottery, and she'd been there
when they'd found a grindstone. Standing there that day, touching that
rock, she had seen, heard, and felt the women and children of that ancient
village grinding corn between two stones. Grinding corn so they could
eat! It still gave her goosebumps.
So, her plan was
to become either a doctor or an archeologist, and it had been her plan
for two years. That's why, in eighth grade when her teacher said she
had to do a science fair project, she'd decided to do it in one of those
areas.
The archaeology
professor had helped her out. He'd offered to provide her with corn
seeds like the kind that had been planted by those native people. He
said they were the first farmers in the area, and he'd collected five
kinds of the seed they'd used. He thought it would be interesting for
Elizabeth to compare old varieties of corn to new ones.
Corn again. It wasn't
like she'd wanted to please her mom or anything. It was like she couldn't
think of anything better to do.
But she'd done a
great experiment, and even won a trip to the state science fair. She'd
learned something too. She'd learned the Native Americans had saved
corn seed from one year, then planted it the next, and they'd used sticks
to plant it, poking it into the soil as evenly as they could. The seed
they planted did well in those conditions. Modern seed wasn't saved
from year to year, and it was adapted to machines that could plant evenly
across a field. It didn't grow when she planted it too deep.
Oh, this was ridiculous.
Help! Here she was, sweet sixteen, looking in the mirror, thinking about
corn. She needed a psychologist.
No. She needed
to pay attention to her thoughts. Maybe she wasn't being fair. Maybe
corn was cooler than she thought. She was cool-look at that smile. Her
brain was just making some mysterious connection between herself and
corn; a connection she didn't understand yet.
She loved it when
her mind came up with these things.
Maybe it had to
do with becoming a doctor. Her mom had managed to slip in comments about
corn being used to make medicine. Man, her mom drove her nuts. She said
they'd discovered ways to create corn that was higher in certain nutrients,
so whoever ate it would be healthier. And they could make it higher
in protein, or in oil, or in starch, depending on what people wanted.
They could even make corn into operating gowns for surgeons.
Scientists could
do that by studying the genes of the corn plant. If they could identify
every single gene in the corn plant, they could use that information
to improve corn. Improved corn.
Hey, not bad. They
could make it sweeter or taller. More nutritious. Easier to make into
plastic, or ethanol. She thought her mom had even talked about corn
that could protect itself from insects. Cool-armored corn.
So, what did this
have to do with her?
Well, maybe someday
she'd be a great doctor who discovered a cure for a terrible disease.
Maybe she'd figure out how to insert that cure into a corn plant. So
farmers could raise that cure in their fields. So there'd be enough
of that cure for everyone. So it wouldn't be too expensive for poor
people.
Elizabeth, the great,
famous doctor who saved the world using corn. Yes. She could see her
name in the headlines, imagine her speech as she accepted the Nobel
Prize. She could feel the gratitude of generations to come. Yes, this
could be it. It was a sign!
Maybe she could
get kids to take their vitamins by hiding them in corn. Hey, what if
it was purple corn? That was it! If she, the greatest doctor of all
time, could figure out a way to put kids vitamins in corn that was so
purple they wanted it, really wanted it, she could probably make a million
dollars.
Well, she'd save
the world at the same time.
She wondered if
she should try to patent the idea before someone else thought of it.
Maybe there actually was some potential in this corn genetics stuff.
Potential for her. Well, for the world too.
She looked at herself
again in the mirror. Good eyes. Nice earrings. Neat jeans. Jeans? Designer
jeans?
Designer GENES!
Wow! What a mind!
It never ceased to amaze her.
Now was that from
her mom, or her dad?