Define Law of Conservation of Energy.
kinetic or potential energy associated with the motion or position of an object
stored energy that results from the position or shape of an object
Energy cannot be created or destroyed.
the energy an object has due to its motion

Energy cannot be created or destroyed

Explanation:

Law of Conservation of Energy states that energy can neither be created nor destroyed, rather it is conserved.

For instance:

- an electric pressing iron convert electrical energy to heat energy;

- a solar panel convert solar energy to electrical energy etc

In all of these examples, energy is conserved by being converted from one form to another in nature.

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.