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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Identify the correct statement from the following:

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प्रश्न

Identify the correct statement from the following:

विकल्प

  • High levels of estrogen triggers the ovulatory surge.

  • Oogonial cells start to proliferate and give rise to functional ova in regular cycles from puberty onwards.

  • Sperms released from seminiferous tubules are highly motile.

  • Progesterone level is high during the post ovulatory phase of menstrual cycle.

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उत्तर

Progesterone level is high during the post ovulatory phase of menstrual cycle.

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अध्याय 3: Human Reproduction - MULTIPLE CHOICE QUESTIONS [पृष्ठ १७]

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एनसीईआरटी एक्झांप्लर Biology Exemplar [English] Class 12
अध्याय 3 Human Reproduction
MULTIPLE CHOICE QUESTIONS | Q 2. | पृष्ठ १७

संबंधित प्रश्न

Explain the role of pituitary and the ovarian hormones in menstrual cycle in human females


Name the function of the following:

Corpus luteum


The Graafian follicle, after ovulation turns into a hormone producing issue called Corpus callosum.


Give appropriate biological or technical terms for the following:

The onset of menstruation in a young girl


Explain the ovarian and uterine events that occur during a menstrual cycle in a human female under the influence of pituitary and ovarian hormones respectively.


Describe the phases of the menstrual cycle and their hormonal control.


Which one of the following events occurs during the secretory phase of the menstrual cycle?


The life of corpus luteum is generally about ______ days in the absence of pregnancy


Calculate the expected date of ovulation, if in a normal menstruating woman, gets her menses on 5th April.


Luteal phase is also known as ____________.


Corpus luteum develops under the influence of ______.


The mammalian corpus luteum produces ______.


The Corpus luteum grows during menstruation.


Answer the following questions by observing the diagram of menstrual cycle: 

  1. What is the period of menstruation?
  2. On which day does ovulation occur during the menstrual cycle?
  3. In the menstrual cycle which reproductive organs undergo changes?
  4. Which period is said to be the period of regeneration of endometrium?
  5. Which period is said to be the period of secretions of glands in endometrium?

Which of the following statement is correct?


Write a short note on Proliferative Phase.


Give a reason for the following:

The second half of the menstrual cycle is called the luteal phase as well as the secretory phase.


The enlarged mature follicle bursts to release the egg.


Name these:

4 phases of the menstrual cycle.


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