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प्रश्न
Why did T. H. Morgan select Drosophila melanogaster to study sex linked genes for his lab experiments ?
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उत्तर
T. H. Morgan selected Drosophila melanogaster to study sex-linked genes in his lab experiment due to the following reasons:
(i) Drosophila melanogaster has short life cycle, high reproductive rate and has sex chromosomes similar to that of humans, that is, females have XX chromosomes while males have XY chromosomes (however, their sex determination mechanism is different from humans).
(ii) Sex-linked traits such as red eye colour and white eye colour are found only in Drosophila melanogaster, where white eye colour in males is a sex-linked recessive trait.
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संबंधित प्रश्न
"The sex of a newborn child is a matter of chance and none of the parents may be considered responsible for it". Draw a flow chart showing determination of sex of a newborn to justify this statement.
What are the chromosomes XY and XX known as?
________ shows haplo-diploid type of sex-determination.
Define the following:
Autosomes
Explain the mechanism of sex determination in humans with a suitable chart.
Which of the following is incorrect regarding ZW-ZZ type of sex determination?
From the following which option correctly represents the normal genetic constitution of a ovum?
Identify the organism in which ZZ-ZW type of sex determination is observed.
Chromosomal constitution of normal human females can be written as ______.
The number of pairs of sex chromosomes in the zygote of a human being is ______
