Anurse is teaching a client with a vitamin b12 deficiency about appropriate food choices to increase the amount of b12 ingested with each meal. the nurse knows the teaching is effective based on which statement by the client indicates successful teaching.

The client stating that he/she would eat meat sources like chicken or pork along with each meal proves that the nurse had been effective in successfully teaching about appropriate food choices for vitamin B12 deficiency.

Explanation:

Vitamin B12 is a highly essential vitamin but cannot be synthesized by the body on its own. Hence, needs to be supplemented through dietary sources or by supplements.

Dietary sources are only available in animal origin foods like fish, eggs, meat, poultry, milk and dairy products.

Clams are the highest source of B12 followed by beef liver, salmon, trout, milk, yoghurt, ham etc.

Few plant-based foods like cereals are fortified with high levels of vitamin B12 for vegetarians to avail dietary B12.

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.