Home
Class 12
BIOLOGY
How do genes and chromosomes share simil...

How do genes and chromosomes share similarity from the point of view of genetical studies ?

Text Solution

Verified by Experts

By 1902 , the chromosome movement during meiosis had been worked our. Walter Sutton and Theodore Boveri (1902) noted that the behaviour of chromosomes was parallel to the behaviour of genes and used
chromosome movement to explain Mendel.s laws. They studied the behaviour of chromosomes during mitosis (equational division) and during meiosis (reduction division ) . The chromosomes as well as genes occur in pairs and the two alleles of a gene pair are located on homologous sites of homologous chromosomes .
Chromosomes segregate when germ cells are formed
Promotional Banner

Topper's Solved these Questions

  • HEREDITY AND VARIATION

    ARIHANT PUBLICATION|Exercise Part II Questions For Assessment(Very Short Answer Type Questions) M.C.Q |5 Videos

  • HEREDITY AND VARIATION

    ARIHANT PUBLICATION|Exercise Part II Questions For Assessment(Very Short Answer Type Questions) Correct the statements, if required by changing the underlined word (s) |2 Videos

  • HEREDITY AND VARIATION

    ARIHANT PUBLICATION|Exercise Part II Questions For Practice (Very Short Answer Type Questions ) Express in one or two word (s) |2 Videos

  • HEALTH AND DISEASES

    ARIHANT PUBLICATION|Exercise CHAPTER PRACTICE (Short Answer Type II Questions )|3 Videos

  • HUMAN REPRODUCTION

    ARIHANT PUBLICATION|Exercise CHAPTER PRACTICE (Long Answer Type Questions)|4 Videos

Similar Questions

Explore conceptually related problems

How does a chromosomal disorder differ from a Mendelian disorder?

How many genes does a child receive from its father?

How many genes does a child receive from its father?

How do you get ethane from acetylene ?

Do the genes of the X and Y chromosomes determine only sex characteristics?

Assertion : When yelow bodied, white eyed Drosophila females were hybridised with brown-bodied, red eyeed males , and F_(1) progeny was intercrossed, F_(2) ratio deviated from 9:3:3:1 Reason : When two genes in a dihybrid are on same chromosome, the proportion of parental gene combinations are much higher than the non-parental type

How do gametes acquire haploid number of chromosomes?

How do trees draw water from ground?

Assertion : Females, homozygous for genes on the X chromosomes do not express a trait more markedly than do hemizygous males Reason: Dosage compensation mechanism accounts for effective dosage genes in males and females.

ARIHANT PUBLICATION-HEREDITY AND VARIATION-Part II Questions For Practice (Short Answer Type Questions )
  1. Explain the phenomenon of multiple allelism and codominance taking ...

    Text Solution

    |

  2. What is the phenotype of the following (a) l^(A) i (b) ii

    Text Solution

    |

  3. A child has blood group O. If the father has blood group A and mother ...

    Text Solution

    |

  4. Explain the following What is the most common example of pleiot...

    Text Solution

    |

  5. Explain the following How are the pleiotropic genes useful ?

    Text Solution

    |

  6. State the significance of crossingover.

    Text Solution

    |

  7. What is Chiasma ?

    Text Solution

    |

  8. What is likage? mention it's Significance.

    Text Solution

    |

  9. Write a short notes on: Crossing over

    Text Solution

    |

  10. Define multiple allelism

    Text Solution

    |

  11. During his studies on genes in Drosophila that were sex-linked, TH ...

    Text Solution

    |

  12. List three different allelic forms of gene 'I' in human . Explain th...

    Text Solution

    |

  13. A woman with blood group 'A' marries a man with blood group 'O' . Di...

    Text Solution

    |

  14. A woman with blood group 'A' marries a man with blood group 'O' . Di...

    Text Solution

    |

  15. blood group are called universal recipient.

    Text Solution

    |

  16. Explain ABO blood group?

    Text Solution

    |

  17. Inheritance pattern of flower colour in garden pea plant and snapdrago...

    Text Solution

    |

  18. Explain the genetic basis of blood grouping in human population

    Text Solution

    |

  19. Can a child have blood group o if his parents have blood group A and b...

    Text Solution

    |

  20. How do genes and chromosomes share similarity from the point of view ...

    Text Solution

    |