SEX DETERMINATION Flashcards

1
Q

What chromosome is the testis determining factor?

A

Y chromosome

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2
Q

What is primary sex determination?

A

Determination of the gonads

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3
Q

What is the Y chromosome crucial for determining?

A

Sex in mammals

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4
Q

What would someone with “XO” chromosome be?

A

Female

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5
Q

Can a single X produce ovaries?

A

No, two (XX) are needed

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6
Q

What is secondary sex determination?

A

Affects the bodily phenotype (gonads can be removed before differentiation)

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7
Q

What is SRY:

A

Sex determining region of the chromosome and turns gonads into testes

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8
Q

What is sex determined by in drosophilia?

A

Balance of X chromosomes and male autosomes (not the Y)

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9
Q

What is the gene expression in drosophilia?

A

X:A - male or female specific transcription sequence

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