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NEETZoologyPrinciples of Inheritance and Variation

Where are the two alleles of a gene pair located?

Options

  1. AOn different chromosomes
  2. BOn homologous sites on homologous chromosomes
  3. COn the same chromosome
  4. DOn non-homologous chromosomes

Correct answer

B. On homologous sites on homologous chromosomes

Step-by-step solution

In 1900, three Scientists (de Vries, Correns and von Tschermak) independently rediscovered Mendel’s results on the inheritance of characters. Also, by this time due to advancements in microscopy that were taking place, scientists were able to carefully observe cell division. This led to the discovery of structures in the nucleus that appeared to double and divide just before each cell division. These were called chromosomes (colored bodies, as they were visualized by staining). By 1902, the chromosome movement duri

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