Slide 1

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By drawing a picture describe the flow
of genetic information from DNA to
a protein.
What is the function of RNA?
Transfers or relays genetic
information
What is the product of transcription?
mRNA
Where in the cell does transcription
take place?
Nucleus
What is the product of translation?
A protein
Where in the cell does translation take
place?
At the ribosome
True or false:
During transcription, mRNA is being
synthesized from both sides (both
backbones) of DNA.
False: mRNA is a complement to only
one side of DNA
What determines which amino acid is
brought to the ribosome during
translation?
The mRNA codon – use your codon
chart.
Remember 1 codon = 1 amino acid!
What bring the amino acids to the
ribosome during translation?
tRNA
Given the DNA sequence find the
mRNA sequence and the amino acid
sequence:
TACGGACAC
DNA: TACGGACAC
mRNA: AUGCCUGUG
A.A.: Met-Pro-Val
Removing a nucleotide from a DNA
sequence is called ____________
mutation.
Frameshift (deletion)
What mutation is shown below:
ATTGGCTATCCG
ATTGGGTATCCG
Point mutation (also called
substitution)
What is the major problem that could
result from a mutation?
An abnormal protein
If a mutation does not cause a change
in the amino acid sequence it is called
a:
Silent mutation
Name 1 benefit of genetic engineering.
• helps to determine paternity
• identify a carrier of a particular gene
• solve a crime
What process or technique is used to
help researchers analyze a person’s
DNA and compare the sequence to
other organisms?
Gel electrophoresis
What is the term used to describe
which genes are turned “off and on”
in order to synthesis necessary
proteins for the organism?
Gene expression
When cloning a mouse, how many mice
does the process require?
3 – A donor somatic cell (the cell being
cloned), a donor egg cell and a
surrogate.
The nucleus is removed from the donor
egg cell and the somatic cell nucleus
is implanted in the surrogate.
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