Which of the following will theoretically produce an individual who is genotypically female but with male...

Which of the following will theoretically produce an individual who is genotypically female but with male secondary phenotypic features?

Select one:

a. XX individual with a TDF gene translocated into one the X chrmosomes

b. XY individual with a mutated SRY gene

c. XX individual with a SRY gene translocated into one the X chrmosomes

d. XY individual with a mutated Tfm gene

e. XX individual with a mutated Tfm gene

Expert Solution

ANSWER :

C. XX individual with a SRY gene translocated into one the X chrmosomes.

EXPLANATION:

Genotypic sex refers specifically to an individual's two sex chromosomes. Most people have either XX chromosomes (genotypic female) or an X and a Y chromosome (genotypic male). Phenotypic sex refers to an individual's sex as determined by their internal and external genitalia, expression of secondary sex characteristics, and behavior.

XX male syndrome, (De la Chapelle syndrome), is a rare congenital intersex condition with a 46 XX karyotype individual.

Y chromosome tip contains the SRY gene
During recombination,a translocation occurs in which the SRY gene on the Y chromosome is moved to become part of an X chromosome.
The presence of the translocated SRY gene leads to an XX embryo developing male characteristics.

Therefore,

XX individual with a SRY gene translocated into one the X chrmosomes will be genotypically female with phenotypically male with secondary sexual characters.

gladiator answered 2 years ago

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