DNA STRUCTURE AND REPLICATION Flashcards
What is DNA’s four bases
Adenine-Thymine ( replaced by Uracil for RNA)
Cytosine-Guanine
What is the back bone of DNA
Deoxyribose & Phosphate
What three parts make up a Nucleotide
Deoxyribose - Sugar
Phosphate- Base
Cylic Amine- Base
What are the two nitrogenous bases
Purine & Pyrimidine
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is Adenine and Guanine Pyrimidines?
NO Adenine and Guanine are Purines
Are Thymine, Uracil and cytosine Purines?
No, Thymines, Uracils, and Cytosines are Pyrimidines
What two pairs of bases have 2 hydrogen bonds?
Adenine-Thymine
What two pairs of bases have 3 hydrogen bonds?
Guanine - Cytosine
True or False, Does a Purine always have to be paired to a Pyrimidine?
True
Should the strands always be complementary. True or False
True
What does complementary strands mean?
When you read message on one strand you know that bitch is gunna be the same on the other strand bitch ass hoe
In Anti Parallel strands are they matched in opposite directions?
BITCH YOU KNOW IT
Is DNA Always read in 5 to 3 direction?
yes hoe
Explain the process of DNA Replication
DNA has two strands of same information
must then open up ( UNZIP)
bases are then matched perfectly (COMPLIMENTARY)
Forms two double helixes from One
Enzymes HP DL
Helicase ( unzip)
Primase ( set up base RNA)
DNA Polymerse ( concretes DNA to the RNA)
Ligase- Inspects it to make sure its perfect