Home
Class 12
BIOLOGY
(a) What is this diagram representing? ...

(a) What is this diagram representing?
(b) Name the parts a, b and c.
(c) In the eukaryotes the DNA molecules are organized within the nucleus. How is the DNA molecule organized in a bacterial cell in absence of a nucleus?

Text Solution

Verified by Experts

(a) A nucleosome
(b) a-Core of histone protein, b - DNA. c - Hi Histone respectively
(c) In Bacterial cell DNA is organized in large loops held by certain positively charged protein, in a region called nucleoid. DNA is single and circular in nature.
Promotional Banner

Topper's Solved these Questions

  • GENETICS AND EVOLUTION

    TRUEMEN BIOLOGY ENGLISH|Exercise SECTION-D|25 Videos

  • GENETICS AND EVOLUTION

    TRUEMEN BIOLOGY ENGLISH|Exercise SECTION-B|38 Videos

  • Genetics

    TRUEMEN BIOLOGY ENGLISH|Exercise ASSERTION AND REASON|122 Videos

  • HUMAN HEALTH AND DISEASE

    TRUEMEN BIOLOGY ENGLISH|Exercise MULTIPLE CHOICE QUESTIONS|209 Videos

Similar Questions

Explore conceptually related problems

In the eukaryotes the DNA molecules are organised within the nucleus. How is the DNA molecule organised in a bacterial cell in absence of a nucleus?

In the given diagram name the parts A, B, C and D and E .

Name the parts A, B , C , D and E in the given diagram .

What does the above diagram illustrate? Name the parts labelled 'a' and 'b'. Name the types of cells that produce this molecule.

The length of DNA molecule greatly exceeds the dimensions of the nucleus in eukaryotic cell. How is this DNA accommodated

Suppose an organism has 5 pg of DNA in nucleus of its egg. How much DNA would a diploid cell has in its nucleus at G_(1) ?

Name the A,B,C,D parts during cell cycle

Answer the following questions based on Meselson and Stahl's experiment of E. coli : (a) Write the name of the chemical substance used as the only source of nitrogen in the experiment. (b) Why did they allow the synthesis of the light and the heavy DNA molecules in the organism ? (c ) How did they distinguish the heavy DNA molecules from the light DNA molecules? Explain. (d) Write the conclusion the scientists arrived at, at the end of the experiment.

Label the parts represented by (A), (B) and C

Assertion : DNA molecules and RNA molecules are found in the nucleus of cell. Reason : On heating, enzymes do not lose their specific activity.

TRUEMEN BIOLOGY ENGLISH-GENETICS AND EVOLUTION -SECTION-C
  1. Haemophilia is a sex linked recessive disorder of humans. The pedigree...

    Text Solution

    |

  2. Inheritance pattern of ABO blood groups in humans shows dominance. cod...

    Text Solution

    |

  3. (a) What is this diagram representing? (b) Name the parts a, b and c...

    Text Solution

    |

  4. (a) In human genome which one of the chromosomes has the most genes an...

    Text Solution

    |

  5. Study the pedigree chart given, showing the Inheritance pattern of blo...

    Text Solution

    |

  6. Why are F(2) phenotypic and genotypic ratios same in a cross between r...

    Text Solution

    |

  7. (i) Why are grasshopper and Drosophila said to show male heterogamity ...

    Text Solution

    |

  8. Why is tRNA called an adapter molecule?

    Text Solution

    |

  9. (i) List the chromosomal disorders a human may suffer from if karyotyp...

    Text Solution

    |

  10. How are dominance, codominance and incomplete dominance patterns of in...

    Text Solution

    |

  11. A pea plant with purple flowers was crossed with white flowers produci...

    Text Solution

    |

  12. (i) Name the enzyme that catalysis the transcription of hnRNA. (ii) ...

    Text Solution

    |

  13. Unambiguous, universal and degenerate are some of the terms used for t...

    Text Solution

    |

  14. (a) Name the scientist who called t-RNA an adapter molecule. (b) D...

    Text Solution

    |

  15. During the studies on genes in Drosophila that were sex-linked T.H. Mo...

    Text Solution

    |

  16. Explain the rnechanism of sex determination in insects like Drosophila...

    Text Solution

    |

  17. Who determines the sex of an unborn child? Mention whether temperature...

    Text Solution

    |

  18. The following is the flow chart highlighting the steps in DNA finger p...

    Text Solution

    |

  19. Study the given pedigree chart showing the pattern of blood group inhe...

    Text Solution

    |

  20. a) Construct a complete transcription unit with promoter and terminato...

    Text Solution

    |