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प्रश्न
Write a note on sex linkage.
Write a short note on sex linkage.
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उत्तर
Sex linkage refers to the phenomenon where genes are located on the sex chromosomes, usually the X chromosome, and their inheritance is linked to the sex of the individual. Sex-linked traits are passed from parents to offspring through these chromosomes, leading to different patterns of inheritance in males and females. For example, in humans, disorders like hemophilia and color blindness are sex-linked, predominantly affecting males because they have only one X chromosome. Thomas Hunt Morgan's work on fruit flies established the concept of sex linkage by studying eye color traits inherited differently in males and females due to genes on the X chromosome.
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संबंधित प्रश्न
Linkage and crossing-over of genes are alternatives of each other. Justify with the help of an example.
British geneticist R.C. Punnett developed a graphical representation of a genetic cross called “Punnett Square”. Mention the possible result this representation predicts of the genetic cross carried.
Answer the following question.
Explain linkage and recombination as put forth by T.H. Morgan based on his observations with the Drosophila melanogaster crossing experiment.
Give detail account of sex-linked inheritance.
In a cross between AABB × aabb, the ratio of F2 genotypes between AABB, AaBB, Aabb, and aabb would be ______.
Which of the following is suitable for experiment on linkage?
A cross between pure tall pea plant with green pods and dwarf pea plant with yellow pods will produce dwarf F2 plants out of 16 is ______.
Crossing over in diploid organism is responsible for ______.
Two crosses between the same pair of genotypes or phenotypes in which the sources of the gametes are reversed in one cross, is known as ______.
Mendal formulated the law of purity of gametes on the basis of ______.
