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  4. The following graph shows the levels of ovarian hormones during a menstrual cycle. What do 1 and 2 represent? <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/biology/c6081c4e4f9dde807ae62b85789b7219-.jpeg /> 1 2 (a) Progesterone Estrogen (b) FSH LH (c) LH FSH (d) Estrogen Progesterone

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Q. The following graph shows the levels of ovarian hormones during a menstrual cycle. What do $1$ and $2$ represent?
image
$\,\,\,$ 1$\,\,\,$ 2$\,\,\,$
(a)$\,\,\,$ Progesterone$\,\,\,$ Estrogen$\,\,\,$
(b)$\,\,\,$ FSH$\,\,\,$ LH$\,\,\,$
(c)$\,\,\,$ LH$\,\,\,$ FSH$\,\,\,$
(d)$\,\,\,$ Estrogen$\,\,\,$ Progesterone$\,\,\,$

Human Reproduction

Solution:

In the given graph, $1$ and $2$ are estrogen and progesterone respectively. The level of estrogen and progesterone is reduced in the menstrual phase, in follicular phase level of estrogen is increased and in luteal phase level of progesterone increases.