A child is born with two more codons than those found in the DNA of their parents. How could this genetic difference have happened? insertion - an error occurs during DNA replication

substitution - an error occurs during DNA replication

insertion - an error occurs during the process of mitosis

substitution - an error occurs during the process of meiosis

Even though the ostrich is a flightless bird, ostriches still possess wings that stretch approximately two meters across when fully extended. scientists speculate that when dinosaurs became extinct, some of the birds that lived during that time became land dwellers since they were able to consume the food that the dinosaurs once ate. over time, these species grew larger and heavier. eventually, the ostrich species became too big to fly. the wings found on ostriches are known as a. analogous structures. b. homologous structures. c. vestigial structures. d. symmetrical structures.