Download DNA to Proteins….a REVIEW

Name:___________________________________________ Date:__________________
DNA to Proteins….a REVIEW
1. What type of molecule in DNA? _________________________________
2. What is the monomer or the basic building block that makes up DNA called?
________________________________________
3. What are the three parts that make up this monomer?
________________________________________________________________
4. What is the complementary three base sequence that we read called?
_________________________
5. Define a gene:
__________________________________________________________________
6. DNA codes or holds the instructions to make what in the body?
______________________
7. Proteins are made up of ___________________________.
8. The amino acid ________________________ is represented by ACA.
9. __________ and __________ are mRNA codons for phenylalanine.
10. The genetic code is said to be universal because a codon represents the same
____________________________ in all organisms.
11. _________, _________, and __________ are stop codons.
12. _______________________ is an amino acid that is represented by only 1 codon
and usually starts the amino acid sequence.
13. Proteins are made in the ___________________ in the cytoplasm, whereas DNA
is found only in the ___________________ in our cells.
14. What is the name of the bond that connects nitrogen bases together?
____________________________
15. What is the name of the bond that connects amino acids?
______________________________
16. The process of making mRNA from DNA is called
__________________________
17. The process of making proteins from mRNA is called
________________________
18. What is the process in which DNA makes a copy of itself called?
____________________________
Part B: Summary of Nucleic Acids:
DNA
RNA
Phosphate group (yes or
no)
Name of Sugar
Which Nitrogen bases?
(A,T,C,G, or U)
# of Strands
Part C: DNA Replication:
1. Under what circumstance does DNA need to make an exact copy of
itself?
2. What two things about DNA’s structure help to ensure that when
DNA replicates the two pieces will be IDENTICAL?
3. The enzyme _________________________________ is used to
add new DNA nucleotides while it is making a copy of itself.
4. The copying proceeds in ___________ directions on the DNA of
Eukaryotic cells to help replicate the DNA faster.
Part D: Protein Synthesis:
Below you are given the DNA, mRNA, or the Amino Acid. Fill in the blanks. For
some of the blanks you may have to work backwards.
*Remember you can only use the mRNA in the Amino Acid chart!!!
*Pick one of the Amino Acids and use that codon to fill in the mRNA.
DNA
mRNA
Amino
Acid
TAG
TTG
UGU
GAU
ALA
****Check your answers by going to my website and click on the answer
folder. Here you can find an answer key for this review sheet. ****
Tyr