Transcript Slide 1

Activity
How was the first man-made cell created?
Step1:
The scientists choose a bacteria that has one
chromosome made up of many genes.
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Copy this diagram of the bacteria and label
the chromosome and genes.
What are genes made of?
© Snapshot Science, 2010
Activity
How was the first man-made cell created?
Step2:
They then used a computer to decode the genes and
work out the order of bases in the DNA strand.
A
T
G A
A
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C
C
T
C
G T
A
Copy and complete this part of DNA to show
the missing bases.
© Snapshot Science, 2010
Activity
How was the first man-made cell created?
Step 3:
Using the code, they then used man-made bases to
create the chromosome.
They put in some extra pieces of DNA to prove that
they had created the chromosome.
These bases were in a special order to create a code
that spelt out the scientists’ names plus an email
address that you can email if you crack the code!
© Snapshot Science, 2010
Activity
How was the first man-made cell created?
Step 4:
They took the chromosome
out of another bacteria cell.
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And replaced it with their
man-made chromosome.
People say that the headlines saying that a
man-made cell are misleading. Explain why.
© Snapshot Science, 2010
Activity
How was the first man-made cell created?
Step 5:
The new cell was left to reproduce.
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It did reproduce. What does this prove
about the cell?
How could the scientists prove that the new
cells contain their man-made DNA?
© Snapshot Science, 2010