Home
Class 12
BIOLOGY
Assertion. In apomixis , plants of new g...

Assertion. In apomixis , plants of new genetic sequence are produced.
Reason. In apomixis , two individuals of same genetic sequence meet .

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

Promotional Banner

Topper's Solved these Questions

  • PLANT KINGDOM

    TRUEMAN BIOLOGY|Exercise MULTIPLE CHOICE QUESTION|247 Videos

  • Plant Physiology

    TRUEMAN BIOLOGY|Exercise ASSERTION AND REASON|91 Videos

Similar Questions

Explore conceptually related problems

Assertion. The genetic code is degenerate. Reason. Most amino acids are coded by more than one codon.

Gene therapy is an attempt to correct a genetic defect by providing a normal gene into the individual. By this the normal function can be restored. Alternate method would be to provide the gene product (protein/enzyme) know as enzyme replacement therapy, which would also restore the function. Which in your opinion is a better option? Give reason for your answer.

Assertion : A single mutation may produce a new species . Reason : Mutation may cause major variation in genetic material and these are inheritable .

Assertion : Identical twins are produced during two births , resulting from the division of a single fertilized egg . Reaosn : They are of the different sex and otherwise genetically identical.

[A] : Organisms that bear large number of common amino acid sequence may be con- sidered to be more closely related than to those with greatly different amino acid se- quence. [R]: The proteins are chemical finger prints of evolutionary history because they bear amino acid sequences that have changed as a re- sult of genetic change

Which of the following is the correct sequence of events in the origin of life I. Formation of protobionts II. Synthesis of organic monomers III. Synthesis of organic polymers IV. Formation of DNA-based genetic systems

Assertion (A): The elevation in boiling point for two isotonic solutions may not be same. Reason (R ): The boiling point depends upon the concentration of the solute.

Assertion. The nuclear envelope acts as an interface between the genetic component of the cell and the cytoplasm. Reason. It thus protects DNA against the mutagenic effect of cytoplasmic enzyme

On a planet from a distant galaxy, the pilot vehicle collected a sample of bacteria-like material. On analysis, it showed proteins having 30 types of mino acids while the DNA has 6 types of bases. In the genetic code, a sequence of how many bases should be serving as a codon?

[A]: When doing genetics problems, firs de- cide the appropriate key and then determine the genotype and gametes for both parents. [R]: It is necessary to keep in mind that al- though an individual has two alleles for each trait, each gamete has only one allele for each trait

TRUEMAN BIOLOGY-Plant Morphology & Reproduction -ASSERTION AND REASON
  1. [A] : The presence of endothelium around the embryo sac and its cytolo...

    Text Solution

    |

  2. [A] : Synergids play an important role in directing the pollen tube gr...

    Text Solution

    |

  3. Assertion. In apomixis , plants of new genetic sequence are produced. ...

    Text Solution

    |

  4. Pollen tube is a part of

    Text Solution

    |

  5. [A]: Incompatibility is a gene physiological process. [R]: Moderate...

    Text Solution

    |

  6. [A]: The pollen sterility has been attributed to the malfunctioning of...

    Text Solution

    |

  7. [A]: The three cells of the egg apparatus are arranged in a triangular...

    Text Solution

    |

  8. [A]: Pollen grains from male parent are mostly transferred to the stig...

    Text Solution

    |

  9. [A]: The two sperms cells in a pollen tube often change their shape. ...

    Text Solution

    |

  10. [A] : Synandrous condition is found in curcurbits. [R] : The male fl...

    Text Solution

    |

  11. [A]: In certain plants the stem that twins around the support is hard ...

    Text Solution

    |

  12. [A]: Leaf in Daucus carota is decompound. [R]: Saprophytic and paras...

    Text Solution

    |

  13. [A]: The colour of flowers in Bougainvillia is due to the coloured bra...

    Text Solution

    |

  14. [A]: The endosperm contains the triploid number of chromosomes. [R]:...

    Text Solution

    |

  15. [A]: Spore mother cells within the anther pollen sacs form four haploi...

    Text Solution

    |

  16. [A]: One diploid embryo sac mother cell develops within the nucellus o...

    Text Solution

    |

  17. [A]: Triple fusion results in veg~tative fertiliza- tion of angiosperm...

    Text Solution

    |

  18. [A]: Pollination is essential for fertilization. [R]: Abscission or...

    Text Solution

    |

  19. [A]: The biennial plants live for two years. [R]: They flower in bo...

    Text Solution

    |

  20. Assertion : Many visitors to the hills suffer from skin and respirator...

    Text Solution

    |