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प्रश्न
Define complete linkage. Give an example of a cross, showing complete linkage.
उत्तर
Complete linkage:
It is a type of inheritance in which only the parental types appear in the progeny and the cross overs or recombinant types are absent. Here, the genes for the characters are linked genes and occur closely on the same chromosome and do not show independent assortment. Crossing over is absent between the linked genes.
The following cross shows complete linkage.
The F females of the above cross are crossed with homozygous recessive males. The ratio comes out to be 9: 1: 1: 8. The two genes did not segregate independently.
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संबंधित प्रश्न
Define Linkage.
Give detail account of sex-linked inheritance.
Which of the following refers to tendency of genes to inherit together?
From the following disorders identify the ODD one.
A cross between pure tall pea plant with green pods and dwarf pea plant with yellow pods will produce dwarf F2 plants out of 16 is ______.
Crossing over in diploid organism is responsible for ______.
Genes located very close to one another on same chromosome tend to be transmitted together and are called as ______.
When ‘Aa’ is crossed with ‘aa’, (A is dominant over a)
The following are results of crossing a female fly (AaBb) with a male fly (aabb).
- AaBb 1005
- aabb 1000
- Aabb 200
- aaBb 210
Which two genotypes are the recombinant offspring?
The strength of linkage between two genes is ______.
