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प्रश्न
Answer the following question.
Compare in any three ways the chromosomal theory of inheritance as proposed by Sutton and Bovery with that of experimental results on pea plant presented by Mendel.
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उत्तर
Gregor Mendel, through his work on pea plants, discovered the fundamental laws of inheritance. He deduced that genes come in pairs and are inherited as distinct units, one from each parent. Mendel tracked the segregation of parental genes and their appearance in the offspring as dominant or recessive traits. He recognized the mathematical patterns of inheritance from one generation to the next.
Mendel did not investigate how characteristics are sorted and combined on the cellular level. Sutton and Boveri, working independently, suggested that chromosomes could be shown to bear the materials of heredity.
They noted that the behaviour of chromosomes was parallel to the behaviour of the gene and used chromosomes movement to explain Mendel's laws.
Sutton and Boveri argued that the pairing and separation of pair of chromosomes would lead to segregation of a pair of factors they carry. Sutton united the knowledge of chromosomal segregation with Mendelian principle and called it " chromosomal theory of inheritance".
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संबंधित प्रश्न
If centromere is situated in the middle of the chromosome, it is called ________.
(a) Metacentric
(b) Acrocentric
(c) Submetacentric
(d) Telocentric
Define the term ‘genome’.
Classify the chromosomes on the basis of position of centromere.
Telocentric chromosome differs from acrocentric chromosome in that ____________.
Discuss in detail the contributions of Morgan and Sturvant in the area of genetics.
A haemophilic man marries a carrier woman and they have a daughter. What is the probability of their daughter being haemophilic?
Consider the following information and answer the question that follows:
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Make a single pedigree chart using the above information to show the pattern of inheritance of phenylketonuria (PKU) in the family of Reshma.
Which scientist provided the first experimental proof of the Chromosomal Theory of Inheritance using Drosophila melanogaster?
According to the Chromosomal Theory of Inheritance, chromosomes serve which fundamental role in heredity?
During which cellular process do homologous chromosomes separate and distribute one chromosome from each pair to resulting gametes?
