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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
Linkage and crossing-over of genes are alternatives of each other. Justify with the help of an example.
Define Linkage.
How many linkage groups are present in Drosophila melanogaster?
Write a note on sex linkage.
Which of the following statement/s are INCORRECT with respect to crossing over?
i. Crossing over produces recombinations of genes by interchanging and exchanging corresponding segments between nonsister chromatids of homologous chromosomes.
ii. Crossing over occurs during zygotene of prophase I of meiosis.
All the linked genes in a particular chromosome, constitute a ____________.
The number of linkage groups of a particular species corresponds to its ______ number of chromosomes.
All genes located on the same chromosome ______.
From a cross AABb x aaBb, the genotypes AaBB : AaBb : Aabb will be obtained in the ratio ______.
When the parental gene combine with itself; termed as
