Which is located at the beginning of a gene?

terminator

mrna

intron

promoter

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation

All eukaryotic cells contain small bodies called

A. describe the scientific method, using pasteur's swan-necked flask experiment as an example.