The standard or english system of measurement uses units such as yards, miles, quarts, and gallons. the metric system uses units such as meters, kilometers, milliliters, and liters. why is the metric system easier to use than the english system?

a. metric units are easier to measure than english units.
b. the metric system is based on multiples of 10.
c. the metric system is used by everyone in the world.
d. metric units are smaller than english units

is this a psat question, if so do not cheat try your best.

step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.