(Q023) While studying for her final exam in an anatomy and physiology class, Fabienne tries to create a sentence where the first letter of each word represents an important concept that she will need to know. Fabienne is using to help her remember the key terms.

Fabienne is using mnemonics to help her remember the key terms.

Explanation:

A mnemonics can be described as a tool which helps individuals to remember certain facts or data. Mnemonics can arise in the form of songs, rhymes, acronym, phrases etc, anything which will make the learner to easily remember something.

For example, the formulas for sin, cos and tan in mathematics can easily be remembered using the SOH CAH TOA.

Sin is opposite divided by hypotenuse.

Cos is adjacent divided by hypotenuse.

Tan is opposite divided by adjacent.

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.

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