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4.Principles of Inheritance and Variation
normal
In the buccal cavity slide cell of an individual we get a dark stained body near nuclear membrane. The genotype of the individual may be
A
$XX$
B
$XY$
C
$XYY$
D
$XXX$
Solution
(a) Accroding to genetic balance theory, the ratio of $x$-chromosomes and autosomes is operative in determining sex in Drosophila.
For male ratio is .$50$ and for female $1.00$.
The ratio increases in superfemales and decreases in supermales.
Standard 12
Biology