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प्रश्न
How do genes and chromosomes share similarity from the point of view of genetical studies?
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उत्तर
Similarities between Chromosomes and Genes:
- Both occur in pairs.
- Both segregate at the time of gamete formation such that only one of each pair is transmitted to a gamete.
- Independent pairs segregate independently of each other in both.
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संबंधित प्रश्न
Define the term ‘genome’.
Briefly mention the contribution of T. H. Morgan in genetics.
Who had proposed the chromosomal theory of inheritance?
Classify the chromosomes on the basis of position of centromere.
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.
When two different genes came from the same parent they tend to remain together.
Write the observed phenotypic ratio.
Mention the name of man-made cereal. How it is formed?
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.
Identify the term that represents the degree of repetition of the primary basic number of chromosomes in a cell.
From the following identify the statements that are CORRECT with respect to homologous and non-homologous region of X and Y chromosomes.
i. Non-homologous region of X chromosome is longer and contains more genes than that of non-homologous region of Y chromosome.
ii. X-linked genes are present on nonhomologous region of X-chromosome.
iii. Y-linked genes are present on homologous region of Y-chromosome.
iv. Crossing over occurs only between homologous regions of X and Y chromosomes.
Which of the following does NOT agree with chrotnosomal theory of inheritance?
Extranuclear inheritance occurs in ______.
Experimental verification of the chromosomal theory of inheritance was done by ______.
Which of the following is sex chromosomal disorder?
According to the Chromosomal Theory of Inheritance, what are the specific positions on chromosomes where genes are located called?
Despite differing in size and morphology, what equal contribution do male and female gametes make to offspring according to the Chromosomal Theory?
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?
