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प्रश्न
Differentiate between complete and incomplete linkage.
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उत्तर
| No. | Complete Linkage | Incomplete Linkage |
| 1. | The phenomenon of inheritance of completely linked genes is called complete linkage. | The phenomenon of inheritance of incompletely linked genes is called incomplete linkage. |
| 2. | In complete linkage, the linked genes which are closely located on the chromosome do not separate (no crossing over) and inherit together. | In incomplete linkage, the linked genes which are distantly located on the same chromosome and have chances of separation by crossing over are known as incompletely linked (weakly linked) genes. |
| 3. | Example X chromosome of Drosophila males- shows complete linkage. | Example In Zea mays - colour and shape of grain show incomplete linkage. |
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संबंधित प्रश्न
Define the following:
Test cross
A cross between a normal couple resulted in a son who was haemophilic and a normal daughter. In course of time, when the daughter was married to a normal man, to their surprise, the grandson was also haemophilic.
- Represent this cross in the form of a pedigree chart. Give the genotypes of the daughter and her husband.
- Write the conclusion you draw of the inheritance pattern of this disease.
Answer the following question.
Explain linkage and recombination as put forth by T.H. Morgan based on his observations with the Drosophila melanogaster crossing experiment.
Very Short Answer Question.
Give one example of complete sex linkage?
Write a note on sex linkage.
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The genetic map distance between two genes located on the same chromosome can be analyzed by calculating ____________.
Which of the following will not result in variations among siblings?
Blue eye colour is recessive to brown eye colour. A brown-eyed man whose mother was blue-eyed marries a blue-eyed woman. The children shall be ______.
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