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Рубрика:
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форма ______________
основание ______________
быть в разгаре _______________
сузить _______________
преломление _______________
влажность _______________
делать вывод _______________
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2. What do you think
1. What was found by a German biochemist in the late XIX
century?
2. Who suggested that DNA carries genetic information? When
did it happen?
3. What was an important foundation for the description of
DNA?
4. In what scientific institutions were researches on DNA
carried out?
5. What did the Cambridge team try to create?
6. What kind of work did King’s team carry out?
7. What did Franklin find out about DNA?
8. Why did Watson and Crick fail?
V. Discuss with your partner or groupmates.
1. What new information about DNA he/she has learnt from
the text?
2. Is it really important and necessary to know DNA structure?
Why?
Text 4.
Cloning of an Adult Mammal.
I.
First Thoughts.
What is cloning.? Will it ever be possible to
produce exact copies of human beings?
II. Study these words. Make sure you know them.
fashion, genetic, clone, mammal, expert, egg, offspring,
to extract.
III. Read the text and do the tasks following it.
When Dr. Ian Wilmut introduced the world to the world to
the first successful clone of an adult mammal – a seven-month
old Finn-Dorset lamb named Dolly – a new frontier in science
opened wide.
When Dr. Ian Wilmut and his team from the Roslin
Institute created a lamb named Dolly, they accomplished what
many experts thought was a scientific impossibility. Unlike
offspring produced in the usual fashion, Dolly does not merely
take after her biological mother. She is a carbon copy, a
laboratory counterfeit so exact that she is in essence her
mother’s identical twin.
In 1996, Dolly became the first large animal to be cloned
from genetic material extracted from an adult cell. Scientists
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