Home
Class 12
BIOLOGY
[A]: Entry of sperm brings about a rearr...

[A]: Entry of sperm brings about a rearrangement of materials of cytoplasmic egg.
[R]: Path of male nucleus is marked in ovum as copulation path.

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ANIMAL KINGDOM -NONCHORDATES

    TRUEMEN BIOLOGY ENGLISH|Exercise MCQ|285 Videos
  • APPLICATION OF BIOTECHNOLOGY

    TRUEMEN BIOLOGY ENGLISH|Exercise Multiple Choice Questions|120 Videos

Similar Questions

Explore conceptually related problems

The diagram alongside shows a beam of light (red + blue) incident normally on an equilateral triangular prism. If the critical angle for the material of prüsm is 60^@ for the light of red colour, complete the diagram showing the path of light of each colour emerging out of the prism. Mark in the diagram the angles wherever necessary.

In the adjacent diagram, AO is a ray of light incident on a rectangular glass slab. (a) Complete the path of the ray till it emerges out of the slab. (b) In the diagram, mark the angle of incidence (i) and the angle of refraction (r) at the first interface. how is the refractive index of glass related to the angles i and r ? (c) Mark angle of emergence by the letter e. how are the angles i and e related ? (d) Which two rays are parallel to each other ? Name them (e) Indicate in the diagram the lateral displacement between the emergent ray and the incident ray. state one factor that affects the lateral displacement.

An accelration produces a narrow beam of protons, each having an initial speed of v_(0) . The beam is directed towards an initially uncharges distant metal sphere of radius R and centered at point O. The initial path of the beam is parallel to the axis of the sphere at a distance of (R//2) from the axis, as indicated in the diagram. The protons in the beam that collide with the sphere will cause it to becomes charged. The subsequentpotential field at the accelerator due to the sphere can be neglected. The angular momentum of a particle is defined in a similar way to the moment of a force. It is defined as the moment of its linear momentum, linear replacing the force. We may assume the angular momentum of a proton about point O to be conserved. Assume the mass of the proton as m_(P) and the charge on it as e. Given that the potential of the sphere increases with time and eventually reaches a constant velue. After a long time, when the potential of the sphere reaches a constant value, the trajectory of proton is correctly sketched as

An accelration produces a narrow beam of protons, each having an initial speed of v_(0) . The beam is directed towards an initially uncharges distant metal sphere of radius R and centered at point O. The initial path of the beam is parallel to the axis of the sphere at a distance of (R//2) from the axis, as indicated in the diagram. The protons in the beam that collide with the sphere will cause it to becomes charged. The subsequentpotential field at the accelerator due to the sphere can be neglected. The angular momentum of a particle is defined in a similar way to the moment of a force. It is defined as the moment of its linear momentum, linear replacing the force. We may assume the angular momentum of a proton about point O to be conserved. Assume the mass of the proton as m_(P) and the charge on it as e. Given that the potential of the sphere increases with time and eventually reaches a constant velue. The limiting electric potential of the sphere is

An accelration produces a narrow beam of protons, each having an initial speed of v_(0) . The beam is directed towards an initially uncharges distant metal sphere of radius R and centered at point O. The initial path of the beam is parallel to the axis of the sphere at a distance of (R//2) from the axis, as indicated in the diagram. The protons in the beam that collide with the sphere will cause it to becomes charged. The subsequentpotential field at the accelerator due to the sphere can be neglected. The angular momentum of a particle is defined in a similar way to the moment of a force. It is defined as the moment of its linear momentum, linear replacing the force. We may assume the angular momentum of a proton about point O to be conserved. Assume the mass of the proton as m_(P) and the charge on it as e. Given that the potential of the sphere increases with time and eventually reaches a constant velue. The total energy (E) of a proton in the beam travelling with seed v at a distance of r (r ge R) from point O. Assuming that the sphere has acquired an electrostatic charge Q is

TRUEMEN BIOLOGY ENGLISH-Animal Physiology -ASSERTION AND REASON
  1. Statememt 1 : In a Graafian follicle, the primary cell, the and the f...

    Text Solution

    |

  2. [A] : Amniotic fluid serves as a protective cushion. [R]: It breaks...

    Text Solution

    |

  3. [A]: Entry of sperm brings about a rearrangement of materials of cytop...

    Text Solution

    |

  4. A : in morula stage the cells divide without any increase in siz...

    Text Solution

    |

  5. [A]: Brain does not affect in the absence of glucose. [R]: Glucose ...

    Text Solution

    |

  6. [A]: After operation, menstrual cycle in woman may be stopped. [R]...

    Text Solution

    |

  7. Assertion : In placental mammals the placenta is connected to the e...

    Text Solution

    |

  8. Assertion: Smaller the organism higher is the rate of metabolism per g...

    Text Solution

    |

  9. [A] : Haversian canals are inter connecting canals that run usually lo...

    Text Solution

    |

  10. [A]: Conjunctiva is composed of squamous epithelium and is continuous ...

    Text Solution

    |

  11. [A]: During ovarian cycle follicles are con- trolled by gonadotropic h...

    Text Solution

    |

  12. [A] : Hydrostatic pressure in blood forces water and other solutes of...

    Text Solution

    |

  13. [A]: Emboly involves the invagination and involution through bottling ...

    Text Solution

    |

  14. [A]: Each testis is attached to the abdominal wall by a ligament and u...

    Text Solution

    |

  15. [A]: Taste buds are called the sense organs for olfaction [R]: Tas...

    Text Solution

    |

  16. (A]: Little rotation and bending of the vertebral column is possible. ...

    Text Solution

    |

  17. Assertion; Muscle as a whole does not obey All-or-none law. Reason...

    Text Solution

    |

  18. [A]: Generally the intraspecific competition is more intense than inte...

    Text Solution

    |

  19. [A]: The tadpoles become giant tadpoles when fed on thiourea. [R]: ...

    Text Solution

    |

  20. [A]: Pinna of ear is quite elastic and pliable. [R]: Pinna Qf ear ...

    Text Solution

    |