Biology 1 DNA Study Guide
Steps on DNA replication
1. Helicase breaks open the hydrogen bonds between bases 2. Free nucleotide are added to base pairs according to Chargaffs rules by an enzyme called DNA polymerase
Start Codon?
AUG
What term means the sides of DNA run in opposite directions?
Anti-Parrell
Where does translation happen?
Cytoplasm
Guanine bonds with?
Cytosine
What enzyme brings in this parts to fill in the missing pieces?
DNA polymerase
What is the scientific word used to describe the shape of DNA?
Double Helix
What enzyme unzips DNA?
Helicase
What holds the two sides together of a DNA strand together?
Hydrogen Bond
What makes up the "steps" of the DNA ladder?
Nitrogen bases
Do all humans have the exact same copy of DNA? Do any humans have the same copy?
No because each person has a different part of DNA that sets us apart
Where in the cell does DNA replication take place
Nucleus
Where in the cell does transcription happen?
Nucleus
Guanine?
Purine
Adenine?
Purines
What type of base has a larger 2 ring structure?
Purines
Cytosine?
Pyrimidines
Thymine?
Pyrimidines
What type of base has a smaller structure with 1 ring?
Pyrimidines
What two things make up the "sides" of the DNA Ladder?
Sugar and Phosphate
Adenine bond withs?
Thymine
End Codon?
UAG,UGA,UAA
What two scientists are credited with creating DNA model?
Watson and Crick
What does semi-converative mean?
one original and one new piece of DNA
