Chapter 8

True or false: Vertical gene transfer is the transfer of genes from one organism to another in a population, while horizontal gene transfer is the transfer of genes from parent cell to progeny.

False. Vertical transfer is from parent to offspring, while horizontal transfer is from one organism to another in a population.

Genetic change in bacteria occurs through which two mechanisms? Multiple select question. a. vertical gene transfer b. mutation c. horizontal gene transfer

b. mutation c. horizontal gene transfer

Which term refers to an organism that has a mutation?

mutant

auxotroph

a microorganism that requires an organic growth factor

bacterial transformation

mechanism of horizontal gene transferring which "naked" DNA is taken up by the recipient cell

Mutations that arise naturally during cellular metabolism, and not as a result of exposure to mutation-causing agents, are called _____ mutations.

spontaneous