Home
Class 12
BIOLOGY
Changes in GnRH pulse frequency in femal...

Changes in GnRH pulse frequency in females is controlled by circulating levels of

A

oestrogen and inhibin

B

progesterone only

C

progesterone and inhibin

D

oestrogen and progesterone

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • HUMAN REPRODUCTION

    KUMAR PRAKASHAN|Exercise SECTION-E SOLUTION OF NCERT EXEMPLAR (LONG ANSWER TYPE QUESTIONS)|1 Videos

  • HUMAN HEALTH AND DISEASE

    KUMAR PRAKASHAN|Exercise Section - F (Multiple Choice Question) (MCQs Asked In Competitive Exam))|33 Videos

  • MICROBES IN HUMAN WELFARE

    KUMAR PRAKASHAN|Exercise SECTION - F MULTIPLE CHOICE QUESTIONS(MCQS ASKED IN COMPETITIVE EXAM)|56 Videos

Similar Questions

Explore conceptually related problems

Assertion : When a wave changes médium of propagation, its frequency remains constant but its wavelength changes. Reason: Frequency is a property of source whereas wavelength is a property of medium.

Secretion of which hormone in males and in females is responsible for pubertal changes ?

A stationary source emits sound of frequency 1200 Hz. If would blows at the speed of 0.1 v. deduce (a) The change in the frequency for a stationary observer on the wind side of the source (b) Report the calculations for the case when there is no wind but the observer moves at 0.1 v speed towards the source (Given : velocity of sound = v)

Given below are some famous numbers associated with electromagnetic radiations in different contexts in physics. State the part of the electromagnetic spectrum to which each belongs. 1057 MHz (frequency of radiation arising from two close energy levels in hydrogen , known as Lamb shift).

A narrow sound pulse (for example, a short pip by a whistle) is sent across a medium (a) Does the pulse have a definite (i) frequency (ii) wavelength (iii) speed of propagation? (b) If the pulse rate is 1 after every 20s. (that is the whistle is blown for a split of second after every 20s), is the frequency of the note produced by the whistle equal to 1/20 or 0.05Hz?

Figure shows graph of stopping potential v frequency in experiment of photo-electric effect work function of metal will be……e=change of electron.

A train is moving on a straight track with speed 20 ms^(-1). It is blowing whistle at the frequency of 1000 Hz. The percentage change in the frequency heard by a person standing near the track as the train passes him is close to (speed of sound = 320 ms^(-1)).

How does the sign of the phase angle phi , by which the supply voltage leads the current in an LCR series circuit, change as the supply frequency is gradually increased from very low to very high values.

KUMAR PRAKASHAN-HUMAN REPRODUCTION-SECTION-F MULTIPLE CHOICE QUESTIONS
  1. Which of the following events is not associated with ovulation in huma...

    Text Solution

    |

  2. In human females, meiosis-II is not completed until

    Text Solution

    |

  3. Which of the following layers in an antral follicle is acellular?

    Text Solution

    |

  4. Ectopic pregnancies are referred to as

    Text Solution

    |

  5. Which of the following depicts the correct pathway of transport of spe...

    Text Solution

    |

  6. Match column I with column II and select the correct option using the ...

    Text Solution

    |

  7. Several hormones like hCG, hPL, oestrogen, progesterone are produced b...

    Text Solution

    |

  8. Changes in GnRH pulse frequency in females is controlled by circulatin...

    Text Solution

    |

  9. Identify the correct statement on .inhibin..

    Text Solution

    |

  10. Fertilisation in humans is practically feasible only if

    Text Solution

    |

  11. Select the incorrect statement.

    Text Solution

    |

  12. A temporary endocrine gland in the human body is

    Text Solution

    |

  13. Capacitation occurs in

    Text Solution

    |

  14. Hormones secreted by the placenta to maintain pregnancy are

    Text Solution

    |

  15. The difference between spermiogenesis and spermiation is

    Text Solution

    |

  16. Match the items given in Column - I with those in Column - II and sele...

    Text Solution

    |

  17. Colostrum, the yellowish fluid, secreted by mother during the initial ...

    Text Solution

    |

  18. Select the correct sequence of transport of sperm cells in male reprod...

    Text Solution

    |

  19. Extrusion of second polar body from egg nucleus occurs

    Text Solution

    |

  20. In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the ...

    Text Solution

    |