470Sex Determination

470Sex Determination - Sex Determination: What differences...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Sex Determination: What differences in Wolffian and Müllerian duct regression are there in the male and female reproductive systems? What do they become? -Wolffian duct: testis cords hollow out to form the seminiferous tubules and the germ cells migrate to the periphery to begin differentiation into sperm – the efferent ducts are part of the mesonepheric kidney and the Wolffian duct connects them to the testes -differentiates into the epididymis and vas deferens -Mullerian duct: differentiates into female external structures (oviducts, uterus, cervix, and upper vagina) -all of the oogonium cells a female will ever have are supplied during fetal development How do the parts of the primitive sex cords differentiate in males and females? -primary sex determination: genetically male or female – gonads (testes/sperm or ovaries/oocyte) -secondary sex determination: external phenotype outside gonads – duct stem and external genitalia What does Müllerian inhibitory substance ( hormone ) do?
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/27/2012 for the course ZOOLOGY 470 taught by Professor Hardin during the Spring '12 term at Wisconsin.

Ask a homework question - tutors are online