Key Area 1 DNA And The Genome Flashcards
1
Q
How nucleotides join together to form a sugar phosphate backbone in a strand of an DNA molecule
A
A chemical bond forms between the phosphate group of the nucleotide and the carbon 3 of the deoxyribose
Neighbouring nucleotides become joined together to form a long permanent strand in which sugar molecules alternate with phosphate groups forming the DNA molecules sugar phosphate backbone
2
Q
Base pairing which form between the strand of a DNA molecule
A
Two of these strands of nucleotides become joined together by hydrogen bonds forming between their bases hydrogen bond can break when it is necessary for the two strands to separate
3
Q
Antiparallel
A
3’ prime and 5’ prime run in opposite directions
