Lab Practical 1: DNA
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9 Terms
What is antiparallel mean?
strands face opposite direction
What does 5’ and 3’ mean?
it refers to the numbered carbons of the deoxyribose. 5’ is at the top connected to the nucleotides phosphates whereas 3’ is at the bottom and forms a phosphodiester bonds with the next nucleotide phosphate
What are purines?
purines are 2 ring that look like sugar but have nitrogen in them. Adenine and Guanine
What are pyrimidines?
1 ring that look like sugar but have nitrogen in them. Thymine and Cytosine
What are the base pairing rules?
A-T and C-G
How many hydrogen bonds are found between adenine and thyamine?
2 hydrogen bonds
How many hydrogen bonds are found between guanine and cytosine?
3 hydrogen bonds
What type of bonds hold a single DNA strand (or polynucleotide) together?
phosphodiester bonds
What type of bonds hold 2 complementary DNA strands together?
hydrogen bonds