If a nucleotide pair were removed from a gene, which of these would most likely be directly affected?

every pair in the sequence after that pair would be affected, it might result in a mutation

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.