Genes: a. are segments of dna that code for proteins b. are located on chromosomes c. come in pairs but segregate during the formation of gametes d. assort independently of each other if they are on different chromosomes e. all of the above are true

the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

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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.