Download Daily Trivia - James B. Conant High School

A.
There are three key differences
between RNA and DNA
1.
2.
3.
RNA is single stranded : DNA is
double stranded
RNA is made of the sugar Ribose –
DNA is made of deoxyribose
RNA has Uracil instead of Thymine –
Both DNA and RNA have four
nitrogen bases the difference is U vs T
B.
C.
D.
RNA has the job of copying DNA
The goal of RNA is to create proteins
There are three types, each with a
different job.
mRNA – Messenger RNA-copies DNA to
take it out in the cytoplasm
2. rRNA – Ribosomal RNA-works on
matching mRNA - to create the amino
acids in the correct order
3. tRNA – Transfer RNA- gives amino acids
to rRNA to produce the protein.
1.



How does information from the
DNA get to the cytoplasm?
How does the zipper get unzipped
in DNA replication?
What does the work in getting the
amino acids to the worker?
A.
Creates a single RNA strand instead of a
double DNA strand.
B.
Creates mRNA that can move out into the
cytoplasm for the next step.
 Transcription
Animation
C.
D.
In mRNA, three nitrogen bases together
form a code – this is called a codon.
Looking ahead:
This code is matched with an amino acid.
2. A string of amino acids form a protein.
1.
E.
Some codons code for information
other than amino acids
1.
2.
3.
UAA/UAG/UGA are stop codons.
AUG is an example of a start codon.
NOTE: For every one codon, there is
only ONE amino acid that can join.