In the absence of the SRY gene, the early gonads A. Develop a hermaphroditic (mixed male and female) pattern B. Develop into testes C. Develop into ovaries D. Disappear
Added by Paul L.
Step 1
** Show more…
Show all steps
Your feedback will help us improve your experience
Madhur L and 57 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Madhur L.
Indifferent gonads turn into either testes or ovaries depending on a number of factors. At the level of cell behavior, the PGCs migrate into the indifferent gonad in males but do not migrate in females. In males, migration is accompanied by the formation of small cavities and then tubules (seminiferous tubules) by apoptosis, and these small vessels connect to the old metanephric ducts, which are then repurposed as the vas deferens. In females, the PGCs do not migrate into the indifferent gonad, and the old metanephric duct degenerates by apoptosis. Observing this pattern, you postulate that the PGCs secrete a substance that prevents apoptosis of the metanephric duct. Explain how the developmental origin and the behavior of germ cells once they arrive at the gonad can be tracked and explain how you could test the PGC anti-apoptosis hypothesis.
Sri K.
An XY individual is born with a functioning Sry protein and receptors, functioning androgens and non-functioning androgen receptors, and functioning Anti-Mullerian hormone and receptors. a. Will the Wolffian system develop? b. Will the Mullerian system develop? c. Will the primordial organs develop into testes or ovaries? d. Will defeminization occur? e. Will masculinization occur?
Adi S.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD