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1. What bonds form to create the sugar -phosphate backbone?
- peptide bonds
- weak bonds
- strong chemical bonds
- hydrogen bonds
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2. What is meant by DNA strands are anti parallel?
- one strand runs 5' to 3' and the other runs 3' to 5'
- both strands run in the same direction
- the strands go in the same direction
- one strand runs 5' to 5' and the other 3' to 3'
3. what molecule is at the 3' end of a DNA strand?
- base
- phosphate
- deoxyribose sugar
- ribose sugar
4. which molecule is DNA tightly soiled around to form chromosomes?
- amino acids
- phosphate
- protein
- bases
5. what is stage 1 of replication?
- primers bind to the DNAstrand
- the DNA strands unwind and unzip when hydrogen bonds are broken
- the DNA is copied
- the DNA strands unwind and unzip when chemical bonds are broken
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