True-breeding tall plants with purple flowers are crossed to true-breeding dwarf plants with white flowers. The F1 plants were tall with purple flowers. The genes that affect these traits independently assort. If the F1 plants were bred to dwarf plants with white flowers, the expected ratio of the F2 generation would be:

b. 9 tall/purple flowers: 3 tall/white flowers: 3 dwarf/purple flowers: 1 dwarf/white flowers

Explanation:

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."