0 votes
271 views
in Biology Form 4 by

The genetic make-up of a man was found to be XXY.

  1. Name the syndrome the individual could be suffering from. 
  2. Explain how the syndrome occurs. 
  3.  
    • State how the chemical, colchicine induces polyploidy in plants.
    • State one advantage of polyploidy in wheat farming

1 Answer

0 votes
by
  1. Klinefeller's syndrome
  2. Chromosomal abnormalities/ mutation resulting in addition of a whole chromosome. It occurs during meiotic division/meiosis where homologous chromosomes fail to segregate and move on to the same gamete cell/ If gamete wit XX fuses with gamete with Y, then offspring becomes XXY
    XY
    XXXXXXXY
    OXOYO


     

  3.   

    • Prevents spindle formation during cell division leading to cells with extra chromosome.

       

    • Drought/ pest/ disease resistant

    • High yields

    • Early maturity

Welcome to EasyElimu Questions and Answers, where you can ask questions and receive answers from other members of the community.

6.4k questions

9.6k answers

6 comments

590 users

...