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Question
Differentiate between complete and incomplete linkage.
Solution
| 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. |
| e.g. | X chromosome of Drosophila males- shows complete linkage. | In Zea mays - colour and shape of grain show incomplete linkage. |
RELATED QUESTIONS
Very Short Answer Question.
Give one example of complete sex linkage?
Give detail account of sex-linked inheritance.
Which of the following refers to tendency of genes to inherit together?
Analyse the following statements with respect to complete sex linkage and select the correct option.
- It is exhibited by genes located on non-homologous regions of X and Y chromosomes
- Y-linked trait is hypertrichosis.
- X-linked traits are haemophilia, red-green colour blindness, myopia (near sightedness).
Which of the following will not result in variations among siblings?
Which of the following is suitable for experiment on linkage?
In a given plant, red colour (R) of fruit is dominant over white fruit (r); and tallness (T) is dominant over dwarfness (t). If a plant with genotype RRTt is crossed with a plant of genotype rrtt, what will be the percentage of tall plants with red fruits in the next generation?
To determine the genotype of a tall plant of F2 generation, Mendel crossed this plant with a dwarf plant. This cross represents a ______.
What is true about the crossing over between linked genes?
When ‘Aa’ is crossed with ‘aa’, (A is dominant over a)
