Grasses New World Flashcards

Grasses B lecture

1
Q

What did the old corn have that new corn doesn’t?

A

Large glues around the kernels

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2
Q

Where did corn come from?

A

parviglumis

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3
Q

who found out where corn came from?

A

John Doevley and George Beadle

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4
Q

What does landraces mean in plants?

A

a local variety of a species of plantl that has distinctive characteristics arising

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5
Q

Who won the Nobel prize in physiology or medicine in 1983?

A

Barbara McClintock who did the foundational work on jumping genes (transposable elements)

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6
Q

What does GMOs stand for?

A

Genetically modified organisms

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7
Q

How are GMOs made?

A

Genes taken from one plant to another plant that they have never had before (example BT corn repelling plants

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8
Q

What are some positives of GMOs?

A

-larger productivity
-Longer shelf life
-increase nutrients
-Reduced pesticide use

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9
Q

What are some negatives if GMOs?

A

-No long term studies
-Reduction of biodiversity
-Can change the insect population and therefore change the environment
-wild plants and GMOs mating

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