Select all that apply. Which of the following are methods of molecular biotechnology?
selective breeding
recombinant DNA
O hybridization
O cloning
induced mutations
DNA profiling

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables