SEX DETERMINATION Flashcards
1
Q
What chromosome is the testis determining factor?
A
Y chromosome
2
Q
What is primary sex determination?
A
Determination of the gonads
3
Q
What is the Y chromosome crucial for determining?
A
Sex in mammals
4
Q
What would someone with “XO” chromosome be?
A
Female
5
Q
Can a single X produce ovaries?
A
No, two (XX) are needed
6
Q
What is secondary sex determination?
A
Affects the bodily phenotype (gonads can be removed before differentiation)
7
Q
What is SRY:
A
Sex determining region of the chromosome and turns gonads into testes
8
Q
What is sex determined by in drosophilia?
A
Balance of X chromosomes and male autosomes (not the Y)
9
Q
What is the gene expression in drosophilia?
A
X:A - male or female specific transcription sequence