A scientist treats a population of bacteria with a combination of mutagens, including high-energy radiation and certain chemicals. Which is the MOST LIKELY benefit of this treatment? A. The genetic variation of the population decreases, allowing the bacteria to be easier to kill. B. The genetic variation of the population increases, and some of the mutants may have useful properties. C. Many bacterial genes are deactivated, making the bacteria less harmful. D. The bacterial genome increases in length, and some of the new genes may have useful products.

Recombinant dna (rdna) creates offspring which are genetically identical to the parent is the process of breeding only organisms with desirable traits involves the removal of the nucleus of a cell combines genes from organisms of different species in a lab

Two students are working together on an experiment that measures the effect of different liquid fertilizers on the thickness of plants’ stems. which is most likely to result in the greatest amount of error in their scientific experiment? a.one student measures the plant stem widths by using calipers. the other student measures the widths of the same plant stems again by using a different pair of calipers. b.one student measures the plant stem widths by using calipers. the other student types the measurements as they are taken into a computer spreadsheet. c.one student weighs liquids for the experiment by using a calibrated scale. the other student weighs liquids for the experiment by using a different calibrated scale.

What are the two functions of the respiratory system