Which of the following statements are correct regarding female reproductive cycle?
A. In non-primate mammals, cyclical changes during reproduction are called oestrus cycle.
B. First menstrual cycle begins at puberty and is called menopause.
C. Lack of menstruation may be indicative of pregnancy.
D. Cyclic menstruation extends between menarche and menopause.

Choose the most appropriate answer from the options given below:
1. A, C and D only  2. A and D only
3. A and B only  4. A, B and C only
Subtopic:  Menstrual Cycle: Pre Ovulatory Phase | Menstrual Cycle: Luteal Phase |
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). 
Assertion (A): Endometrium is necessary for implantation of blastocyst.
Reason (R): In the absence of fertilization, the corpus luteum degenerates that causes disintegration of endometrium.
In the light of the above statements, choose the correct answer from, the options given below: 
1. (A) is False but (R) is True.
2. Both (A) and (R) are True and (R) is the correct explanation of (A)
3. Both (A) and (R) are True but (R) is not the correct explanation of (A).
4. (A) is True but (R) is False.
Subtopic:  Introduction to Menstrual Cycle: 1 | Menstrual Cycle: Pre Ovulatory Phase | Menstrual Cycle: Luteal Phase |
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Which of the following hormone levels will cause release of ovum (ovulation) from the Graafian follicle?

1. High concentration of Progesterone

2. Low concentration of LH

3. Low concentration of FSH

4. High concentration of estrogen

Subtopic:  Menstrual Cycle: Pre Ovulatory Phase |
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