Principle of Inheritance and VariationMedium
Question
Two dominant non-allelic genes are 50 map units apart. The linkage is
Options
A.cis type
B.trans type
C.complete
D.absent / incomplete
Solution
Chromosome mappins is bsed on tow genetic principles :
(a) The frequency of crossing over between two genes is directly proportional to the distance between them in the chromosome.
(b) Genes are arranged in a linear order in the chromosome.
50 map units distance between the genes is quite enough to change the cis arrangment of dominant genes into trans. So there is no fixed linkage present .
(a) The frequency of crossing over between two genes is directly proportional to the distance between them in the chromosome.
(b) Genes are arranged in a linear order in the chromosome.
50 map units distance between the genes is quite enough to change the cis arrangment of dominant genes into trans. So there is no fixed linkage present .
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