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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
Define the following:
Test cross
Give an example of a cross, showing complete linkage.
Answer the following question.
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.
How many linkage groups are present in Drosophila melanogaster?
Which of the following will not result in variations among siblings?
In a cross between AABB × aabb, the ratio of F2 genotypes between AABB, AaBB, Aabb, and aabb would be ______.
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 ______.
A and B genes are linked. What shall be the genotype of progeny in a cross between AB/ab and ab/ab?
Genes located very close to one another on same chromosome tend to be transmitted together and are called as ______.
The enzyme involved in the process of crossing over is ______.
