Which statement accurately describes life in modern russia?

What is a gene ? a) a section of a protein that codes for dna. b) the alternate version of a trait. c) the visible trait in the f1 generation. d) a section of dna that codes for a specific trait .

The distribution of related animals and plants across the world

Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.