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प्रश्न
How many linkage groups do occur in human being?
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उत्तर
Humans have 23 linkage groups because they have 23 pairs of chromosomes. The maize plant has 10 linkage groups because it has 10 pairs of chromosomes.
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संबंधित प्रश्न
Which of the following is NOT an example of connecting link?
- Archaeopteryx
- fchthyostegia
- Seymouria
- Biston betularia
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.
When a white eye Drosophila male (Xr Y) is crossed to a red eye female (XR XR), in the F2 generation all the females are red eyed and 50% males are white eyed. In a criss-cross test, when males are white eyed. In a criss-cross test, when a white eyed female (Xr Xr) is crossed to a red eye male (XRY), the F1 generation offspring had white eyed males while the female offspring bad red eyes. Instead of crossing of a white eyed female (Xr Xr} to a red eyed male (XRY), white eye female (XrXr) to white eye male (XrY) is crossed, the F1 generation will have the following phenotypes and genotype.
The genetic map distance between two genes located on the same chromosome can be analyzed by calculating ____________.
All the linked genes in a particular chromosome, constitute a ____________.
All genes located on the same chromosome ______.
Which of the following will not result in variations among siblings?
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 ______.
A and B genes are linked. What shall be the genotype of progeny in a cross between AB/ab and ab/ab?
The enzyme involved in the process of crossing over is ______.
