Sexual Differentiation/Determination (2)

Question 1

Sex determination

Answer 1

biological system that prescribes the sexual characteristics that an individual develops; mechanism

Question 2

Sexual differentiation

Answer 2

the sexual characteristics that an individual develops; process

Question 3

SRY gene

Answer 3

Necessary to develop testis from medullary sex cord

Question 4

DMRT1

Answer 4

Downstream gene in all vertebrate classes; important for reproductive function throughout males life

Question 5

Genital (Gonadal) Ridge

Answer 5

the location in the fetus containing embryonic sex cords that will develop into a testis or ovary

Question 6

Primordial Germ cells

Answer 6

embryonic cells that will develop into oogonia or spermatogonia

Question 7

How do immature germ cells migrate to the gonadal ridges from the yolk sac?

Answer 7

Chemokines - chemical attractants

Question 8

What is the inner portion of the gonadal ridge?

Answer 8

Medulla or medullary tissue

Question 9

What is the outermost portion of the gonadal ridge?

Answer 9

Cortex or cortical