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प्रश्न
Short Answer Question.
Explain the chromosomal theory of inheritance.
उत्तर
The chromosomal theory of inheritance was proposed by Sutton and Boveri.
Following are the postulates of chromosomal theory of inheritance:
- Chromosomes are found in pairs in somatic or diploid cells.
- During gamete formation, homologous chromosomes pair, segregate and assort independently at meiosis. Due to this, each gamete contains only one chromosome of a pair.
- Hereditary characters are carried by chromosomes which are present in the nucleus of these gametes.
- Gametes (sperm and egg) contain all the hereditary characters. They form the link between parents and offsprings.
- The union of sperm and egg during fertilization restores the diploid number of chromosomes.
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संबंधित प्रश्न
What is gene pool?
Define the term ‘genome’.
State the difference between meiocyte and gamete with respect to chromosome number.
Define the Homologous chromosomes
Write the salient features of the Sutton and Boveri concept.
Telocentric chromosome differs from acrocentric chromosome in that ____________.
During cell division, spindle fibres get attached to the disc shaped structures present on the centromere are known as ______.
Which three scientists independently rediscovered Mendel’s work?
Chromosome maps/genetic maps were first prepared by ______.
A couple has two daughters. What is the probability that the third child will also be a female?
