Home
Class 12
BIOLOGY
Initiation of gastrulation in humans is ...

Initiation of gastrulation in humans is marked by formation of

A

Blastocoel

B

Primitive streak

C

Morula

D

Notochord

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • TEST 5

    AAKASH INSTITUTE ENGLISH|Exercise EXAMPLE|625 Videos

  • TEST 4

    AAKASH INSTITUTE ENGLISH|Exercise TYPE |1 Videos

  • TEST 6

    AAKASH INSTITUTE ENGLISH|Exercise EXAMPLE|712 Videos

Similar Questions

Explore conceptually related problems

Gastrulation is

Termination of gastrulation is marked by

Gastrulation is a process

Gastrulation comprises

The most vital event of sexual reproduction is perhaps the fusion of gametes in humans. The process results in formation of

Gastrulation is a process of -

Assertion :- Telophase leads to formation of diad of cells. Reason :- During Anaphse is marked by completion of karyokinesis and cytokinesis as well.

Describe the post-zygotic events leading to implantation and placenta formation in humans. Mention any two functions of placenta.

a) Explain the phenomenon of double fertilization. b) Describe the post-zygotic events leading to implantation and placenta formation in humans. Mention any two functions of placenta.

Site of formation of zygote in human beings is

AAKASH INSTITUTE ENGLISH-TEST 5-EXAMPLE
  1. In case of human males inhibin inhibits the secretion of

    Text Solution

    |

  2. Choose the correct sequence w.r.t. human embryonic stages.

    Text Solution

    |

  3. Initiation of gastrulation in humans is marked by formation of

    Text Solution

    |

  4. The slow block to polyspermy

    Text Solution

    |

  5. Genetic constitution of (22 + Y) found in

    Text Solution

    |

  6. Increase in concentration of which hormone determines the time of chil...

    Text Solution

    |

  7. Which of the following hormones is not se- creted by human placenta

    Text Solution

    |

  8. Select the correct match in relation to extra embryonic membranes and ...

    Text Solution

    |

  9. Choose the odd one w.rt.LNG 20

    Text Solution

    |

  10. In a nonpregnant female, regression of corpus luteum occurs due to fal...

    Text Solution

    |

  11. Select odd one w.r.t. barrier method of contraception. (a) Condom (b...

    Text Solution

    |

  12. IVF and ET represent and respectively Select the option that fills the...

    Text Solution

    |

  13. Mix of ova and sperms is placed in fallopian tube of infertile couple ...

    Text Solution

    |

  14. Longitudinal binary fission occurs in

    Text Solution

    |

  15. Gemmule formation occurs in

    Text Solution

    |

  16. Which of the following Sexually Transmitted Infection causative agent ...

    Text Solution

    |

  17. Which of the following is correctly matched event occurring during men...

    Text Solution

    |

  18. Development of unfertilised egg into complete organism is known as (a...

    Text Solution

    |

  19. Chromosome number in meiocyte of housefly and chromosome number in gam...

    Text Solution

    |

  20. Terminal method of family planning includes

    Text Solution

    |