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Regarding sexual differentiation of the fetus

A
Gonadal development begins at 5th week of intrauterine life
B
Y chromosome determines the differentiation of ovaries
C
Female external genitalia development is completed by 10 weeks
D
Male sexual differentiation occurs earlier than females
High-Yield Explanation
OptionB: SRY Gene located on Y chromosome encodes Testis Determining Factor which leads to the development of male genital organs Option C&D: Development of external genitalia is similar in males and females till the 6th week of IUL(Indifferent stage)....later develops in the direction of hormones. REFERENCE: TEXTBOOK OF CLINICAL EMBRYOLOGY... VISHRAM SINGH SECOND EDITION..PAGE NO:277
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