Question

Which of these sentences describe sources and preservation of genetic variation? Select all that apply.

Answer 1

Genetic variation can be defined as the difference in the DNA sequences between the individuals in the population

Explanation:

• Antibiotic resistance in bacterial populations is caused by natural selection of bacteria that inherit mutations that make them resistant to the antibiotics,this sentence describes the source and preservation of genetic variation.
• The Mutation is one of the genetic variation or disorder, and probably bacteria choose mutation to become repellent to antibiotics
• In some of the cases of spontaneous bacteria have been  obtained from other sets of bacteria through the process  and make the bacteria repellent to an antibiotic.
• They survive antibiotic treatment and increase in numbers by natural selection.
• Natural selection can be stated as the process in which organism survive and reproduce adapting to the environment