Exam (elaborations)
Lecture 14- CTO Questions and Answers 2024
- Course
- Institution
Exam of 3 pages for the course CTO - Certified Television Operator at CTO - Certified Television Operator (Lecture 14- CTO)
[Show more]
Content preview
Lecture 14- CTOWhat are primary sex characteristics? - answer Capacity of the reproductive gland
Gonads= overies or testes
Gametes= eggs or sperm
What are secondary sex characteristics? - answer Sexual dimorphism
Distinct difference in size or appearance between the sexes of an animal in addition to
the sexual organs themselves
What is the steps in mammal sex determination? - answerA genetic signal instructing
male of female gonad formation
Once gonads determined they control development of secondary sex characteristics
Sry (sex determining region Y chromosome ) is a transcription factor only expressed
from the Y chromosome
Is gonads are XY they will express Sry which regulates gene expression leading to
testes differentiation
During sex neutral development the mammalian XX or XY embryo both have 'male' and
'female' structures
Male Wolffian duct (precursor of vas dererens)
Female Müllerian duct (precursor of oviduct)
Male determination in XY? - answerThe Sry signal from the Y chromosome causes the
gonads to become testes (not ovaries) and 'male' structures to persist and the 'female'
structures to disappear
XY testes secrete male hormones which act on distant target cells. What are the
hormones? - answerMullerian-inhibiting substance inhibits Müllerian duct (oviduct)
Testosterone signals to the wolffian duct to develop into vas deferens which will carry
sperm
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Dreamer252. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $18.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
76710 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now