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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
What is criss-cross inheritance?
A cross between a normal couple resulted in a son who was haemophilic and a normal daughter. In course of time, when the daughter was married to a normal man, to their surprise, the grandson was also haemophilic.
- Represent this cross in the form of a pedigree chart. Give the genotypes of the daughter and her husband.
- Write the conclusion you draw of the inheritance pattern of this disease.
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.
What was Morgan's observation when he hybridized yellow bodied white eyed female Drosophila to brown bodied red eyed male Drosophila and inter-crossed their progeny?
The genetic map distance between two genes located on the same chromosome can be analyzed by calculating ____________.
The number of linkage groups of a particular species corresponds to its ______ number of chromosomes.
In a cross between AABB × aabb, the ratio of F2 genotypes between AABB, AaBB, Aabb, and aabb would be ______.
Which of the following is a test cross?
Linkage groups can be separated during ______ in meiosis.
