5. Which of the following represents the best description for the structure of DNA?*
A double helix structure that consists of two polynucleotide chains
A five carbon sugar found as part of the structural components of a nucleotide
O A
A structure containing information about the external environment of a cell
O All of the possible forms of a gene that can occur in an individual

Refer to the family pedigree shown here. in generation i, one parent is affected by the gene mutation and one parent isn't. in generation ii, all three children are affected by the gene mutation. what can you conclude about this gene mutation? a. all children born in future generations will be affected by this disorder. b. this gene mutation is a dominant disorder. c. this gene mutation is a recessive disorder. d. the generation i mother is a carrier of this gene mutation.