1.) a student wants to determine the effect of salt concentration on light transmittance. based on this table, what is the independent variable? a.) number of trials b.) salt concentration c.) light transmission d.) location of each trial

A because number of trials is independent mark me brainliest

Salt concentration

Explanation:

The independent variable can be defined as the factor which can be controlled in the experiment. The experimenter can control the amount of salt concentration in the experiment.

The dependent variable is the transmittance which is affected by the salt concentration. This factor is not under the control of the experimenter.

Hence, the correct answer is salt concentration.

the correct option is option d

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.