Advertisements
Advertisements
प्रश्न
Why did T. H. Morgan select Drosophila melanogaster to study sex linked genes for his lab experiments ?
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Explain sex determination in human beings.
There are two sets of chromosomes in the zygote.
Define the following:
Autosomes
Define the following:
Sex-linked characters
Write a short note on sex determination in man.
Structures present in a cell which is responsible for determination of the sex of a baby is ______.
Fill the blank circles in figure and identify the sex of child A and B.
Given below are two statements:
Statement - I: The male Drosophila has a pair of homomorphic sex chromosomes.
Statement - II: The male human being has a pair of heteromorphic sex chromosomes.
In the light of above statements, Choose the most appropriate answer from the options given below:
Which organisms utilize the ZW–ZZ sex determination system?
In the XX–XY sex determination system, if a female (XX) is fertilized by an X-bearing sperm, what is the resulting genotype of the offspring?
