Compare and contrast how stem cell research uses RNA and DNA and if one is more important than the other

What are the types of genetic recombination

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.

Ascience research group is testing a new type of plant food. one trial is conducted in a controlled experiment. the data from the trial show that the plant that received the new food grew faster than the control plant. the group announces that the new plant food makes plants grow faster. what is the main weakness in this scientific claim?