Answer :
The 5' and 3' refer to c) the position of a carbon atom in the sugar backbone.
DNA and mRNA are made from nucleotide bases, a phosphate group, and a sugar backbone.
There are two strands of DNA, and one of them is in the 5' to 3' direction. The other is in the 3' to 5' direction. This means that the position of the carbon that is free in the sugar backbones is either 5' for one strand and 3' for the other strand.
However, replication occurs only in the 5' to 3' direction. This is because the DNA polymerase can work only in this direction. For the other strand, referred to as the lagging strand, Okazaki fragments are formed.
Your question will correctly be written as:
DNA and mRNA synthesis proceed in a 5' to 3' direction. what do 5' and 3' refer to? group of answer choices
a) the number of hydroxyl groups attached
b)the position of the phosphate and nitrogen bases
c) the position of a carbon atom in the sugar backbone
d) the number of carbons in the nitrogen base
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