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प्रश्न
Who had proposed the chromosomal theory of inheritance?
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उत्तर
Sutton and Boveri independently proposed the chromosomal theory of inheritance in 1902. The two workers found a distinctive connection between the transmission of Mendelian hereditary elements (genes) and chromosome activity during gamete production and fertilisation. They proposed that chromosomes carried Mendelian factors. During meiosis, both chromosomes and genes segregate and assort independently before recombining in the zygote during fertilisation. Morgan, Sturtevant, and Bridges enlarged upon the chromosomal theory of inheritance.
संबंधित प्रश्न
If centromere is situated in the middle of the chromosome, it is called ________.
(a) Metacentric
(b) Acrocentric
(c) Submetacentric
(d) Telocentric
Sketch and label the structure of chromosome.
Classify the chromosomes on the basis of position of centromere.
Describe the structure of sex-chromosomes.
Choose the correct options of the following question:
Study the given monohybrid cross:
A test cross for this Fj will be:
Give an account of artificial chromosomes in the transfer of genetic material.
Explain codominance in colour coat in cattle with checker board method.
An allohexaploidy contains
Write the salient features of the Sutton and Boveri concept.
Identify the scientists who proposed chromosomal theory of inheritance.
Telocentric chromosome differs from acrocentric chromosome in that ____________.
Which of the following is a primary constriction?
Read the following statements regarding 'X and Y' chromosomes and select the correct option.
P - Due to presence of large amount of euchrornatin X chromosome is genetically more active.
Q - Due to presence of small amount of heterochromatin Y chromosome is genetically more active.
During cell division, spindle fibres get attached to the disc shaped structures present on the centromere are known as ______.
Identify the term that represents the degree of repetition of the primary basic number of chromosomes in a cell.
Chromosomal theory of inheritance was put forth by ______
A plant having the genotype AABbCC will produce ______ kinds of gametes.
A gene pair hides the effect of another. The phenomenon is ______.
Mendel’s work was rediscovered by three scientists in the year ______.
Which three scientists independently rediscovered Mendel’s work?
During mitosis, chromosomes distribution to the daughter cell is ______.
Which of the following phase follows S and G2 phases of interphase?
Who postulated the 'Chromosomal theory of inheritance'?
Experimental verification of the chromosomal theory of inheritance was done by ______.
A haemophilic man marries a carrier woman and they have a daughter. What is the probability of their daughter being haemophilic?
Which chromosome in the human genome has the highest number of genes?
