Template:BGDB Sexual Differentiation - Sex Determination Interactive: Difference between revisions

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Here are a few simple Quiz questions that relate to Sex Determination from the lecture and practical.
Here are a few simple Quiz questions that relate to Sex Determination from the lecture and practical.
{{primordial germ cell}}


<quiz display=simple>
<quiz display=simple>
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- &nbsp; primordial germ cells
- &nbsp; primordial germ cells
|| Incorrect! The primordial germ cells are not involved in this initial sex determination step. The support cells in the genital ridge, forming the testes, express {{SRY}} and this leads to a cascade of signaling differentiating these cells into '''{{Sertoli cell}}s''', also called sustentacular cells of Sertoli.
|| Incorrect! The {{primordial germ cell}}s are not involved in this initial sex determination step. The support cells in the genital ridge, forming the testes, express {{SRY}} and this leads to a cascade of signaling differentiating these cells into '''{{Sertoli cell}}s''', also called sustentacular cells of Sertoli.
- &nbsp; anterior pituitary
- &nbsp; anterior pituitary
|| Incorrect! The anterior pituitary participates in later hormonal events. The support cells in the genital ridge, forming the testes, express {{SRY}} and this leads to a cascade of signaling differentiating these cells into '''{{Sertoli cell}}s''', also called sustentacular cells of Sertoli.
|| Incorrect! The anterior pituitary participates in later hormonal events. The support cells in the genital ridge, forming the testes, express {{SRY}} and this leads to a cascade of signaling differentiating these cells into '''{{Sertoli cell}}s''', also called sustentacular cells of Sertoli.

Revision as of 11:20, 5 June 2019

Sex Determination Interactive Component

Attempt the Quiz - Sex Determination  
BGDsmall.jpg

Here are a few simple Quiz questions that relate to Sex Determination from the lecture and practical.

primordial germ cell

1 Sex determination occurs initially through the SRY transcription factor acting on the:

  primordial germ cells
  anterior pituitary
  testes support cells
  ovary support cells
  mesonephric duct cells

2 The cells in the adult male and female gonad forming from equivalent primordial cells in each sex are:

  Sertoli cells and thecal cells
  Leydig cells and interstitial cells
  primordial germ cells and oocytes
  thecal cells and interstitial cells
  ductus deferens and mesonephric ducts

3 The genes for testes-determining factors are located on the:

  short arm of the Y chromosome
  long arm of the Y chromosome. SRY (sex-determining region on the Y chromosome) gene was found in 1990 on the Y and the first SOX gene identified, the sry gene encodes a "testis-determining factor" a 204aa protein (Mr 23884 Da).
  short arm of the X chromosome
  long arm of the X chromosome
  both the X and Y chromosomes contain these genes

4 The protein product of the gene SRY acts as a

  growth factor
  endocrine factor
  receptor protein
  transcription factor


BGDsmall.jpg
Practical 12: Sex Determination | Early Embryo | Late Embryo | Fetal | Postnatal | Abnormalities | 2011 Audio


Additional Information: SRY | testis | sertoli cell