Download What is RNA? - Manhasset Schools

Name:
Unit 5: Genetics
Date:
Aim 23: How does the process of transcription allow DNA to transfer its “instructions” to the rest of the cell?
What is the
“Central Dogma”
of Biology?
DNA codes for _________ and __________ codes for ______________________
RNA is very similar to DNA except…
What is RNA?
Name
RNA nucleotides contain….
Nucleotides
1. _________________ sugar (instead of deoxyribose)
2.
3.
# of strands
Bases
1. __________________(A)
2. __________________(U) * NO THYMINE! *
3. __________________(G)
4. __________________(C)
DNA holds the cells “instructions” but is
trapped inside of the nucleus. So how does the
DNA get the message to the rest of the cell
where the proteins are made?
DNA is too ________________ to leave the nucleus, so a smaller molecule called __________
is made to carry the _______________________ out of the _________________ so
____________________ can be made.
* This is completed through the process of _________________________________ *
Transcription
What is it?
Process in which ________ is made from
_________
Where does it
occur? Where
is RNA made?
Why does it
occur?
So the ___________________________ can
travel to the __________________ to begin
the synthesis of ________________________
Steps of Transcription:
1. The DNA strands _______________ creating two ________________ strands
2. _________ nucleotide subunits (sugar, phosphate and base) are paired to their complimentary DNA base pairs on the DNA strand
RNA Base pairing: Adenine binds to ____________________
Cytosine binds to ____________________
3. The _________ disconnects from the DNA and leaves the __________________ and travels to the ______________________
4. DNA ____________________ back up into a ________________________
Compare and Contrast DNA and RNA
a)
b)
c)
d)
e)
f)
Name of each molecule
How many strands are found in each molecule?
What is the sugar in the nucleotide of each molecule?
Where is the molecule found?
What are the bases in each molecule?
Similarities between the two molecules
a)
a)
f)
b)
b)
c)
c)
d)
d)
e)
e)
Practicing Transcription: Write the complimentary RNA strand for each DNA strand below
Original DNA: A A G
New RNA:
_______
Original DNA: G A A
New RNA:
G T A
C T T
G AA
C C T
A C T
T A G
______
______
______
______
______
______
G A T
_______
______
Original DNA: C G C
A T C
New RNA:
______
_______
A C A
______
A T A
______
T C G
______
T A G
______
A C C
T C A
A T C
______
______
______
C C A
A C G
T A T
______
______
______