The analysis of rRNA gene sequences to compare evolutionary relationships is known as O molecular phylogenetic analysis.
O RNA sequence comparison.
O molecular evolutionary analysis.
O molecular clock analysis.

A

Explanation:

When you compare evolutionary pathways, you generate a phylogenetic tree. Using RNA as the source to generate the tree would be molecular phylogenetic analysis

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.