Saturday, November 25, 2006

Wheat's lost gene helps nutrition


Fill in the gaps.
Complete the "_____ gaps" using all these verb forms:

can be created
consumed
has been changed
has been identified
has largely been silenced
have discovered
is found

Complete the "------- gaps" using all these words:
functioning
indicating
providing
standing
writing


A very special gene ______ in wheat. It has been called GPC-B1, GPC ------- for Grain Protein Content. It ______ in both wild and domesticated varieties of wheat, but in subtly different forms, -------- that it ______ by the long history of domestication. It ______ during the evolution of domestic varieties.

Scientists ______ that turning it back on could raise levels of protein, iron and zinc.
------- in the journal Science, they suggest that new varieties with a fully ------- gene ______ through cross-breeding with wild wheat.

"Wheat is one of the world's major crops, ------- approximately one-fifth of all calories ______ by humans," said project leader Professor Jorge Dubcovsky from the University of California at Davis.

"Therefore, even small increases in wheat's nutritional value may help decrease deficiencies in protein and key micronutrients."

Read the whole BBC story here.
Key: Move your cursor mouse here >: has been identified; is found; has been changed; has largely been silenced; have discovered; can be created; consumed; standing; indicating; writing; functioning: providing

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