NEET2003ZoologyMolecular Basis of InheritanceActual
Genetic map is one that:
Options
- Aestablishes sites of the genes on a chromosomes
- Bestablishes the various stages in gene evolution
- Cshows the stages during the cell division
- Dshows the distribution of various species in a region
Correct answer
A. establishes sites of the genes on a chromosomes
Step-by-step solution
A genetic map is a type of chromosome map that shows the relative locations of genes and other important features. The map is based on the idea of linkage, which means that the closer two genes are to each other on the chromosome, the greater the probability that they will be inherited together. Related Theory In genetics, a centimorgan (cM) or map unit (m.u.) is a unit for measuring genetic linkage. It is defined as the distance between chromosome positions (also termed loci or markers) for which the expected aver