DNA and mRNA synthesis proceeds in the 5' to 3' direction. What do 5' and 3' refer to? a) The position of the phosphate and nitrogen bases

b) The number of carbons in the nitrogen base

c) The number of hydroxyl groups attached

d) The position of a carbon atom in the sugar backbone

Some scientists argue that global warming is related to buming fossil fuels to produce energy o increased use of fertilizers loss of forested areas a of the above

Movimento corporal andar, musculos planos e eixos

Which of the following statements best distinguishes a hypothesis from a theory? a. theories are hypotheses that have been proved. b.hypotheses are guesses; theories are correct answers c. hypotheses usually are relatively narrow in scope; theories have broad explanatory power. d. theories are proved to be true; hypotheses are often contradicted by experimental results.