Advertisements
Advertisements
प्रश्न
Write a note on sex linkage.
Write a short note on sex linkage.
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
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 an example of complete linkage.
Which of the following refers to tendency of genes to inherit together?
The phenomenon of ____________ is universal and it is necessary for the natural selection, because it increases the chances of variation.
Two dominant non-allelic genes are 50 map units apart. The linkage is ______.
After crossing two plants, the progenies are found to be male sterile. This phenomenon is found to be maternally inherited and is due to some genes which are present in ______.
What will be the distribution of phenotypic features in the first filial generation after a cross between a homozygous female and a heterozygous male for a single locus?
When ‘Aa’ is crossed with ‘aa’, (A is dominant over a)
The percent crossing over is high when ______.
T. H. Morgan used ______ for his experiments in linkage.
