HMB200H1 Lecture Notes - Lecture 15: Pituitary Gland, Anterior Commissure, Labia Minora

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17 Mar 2012

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Female reproductive egg determines sex: until females reproductively active, then possible to determine sex within species within ecosystem. Chromosomes: xx (female), xy (male: xo, xxy, xyy , y = male, dif ratios dif odd cases. Genitalia: internal & external: primary sex characteristics which doctors look at to find sex of baby, external genitalia can be misleading so have to analyze chromosomes. Primary & secondary sex characteristics: external genitalia become smaller in body percentage after birth because surge of hormones decreases after birth. Gender identity: whether you are male or female determined by social factors. Partner preferences: hypothal projects to dif parts of limbic system by ascending pathways. Sexual differentiation (how primary sex characteristics are produced) Leads to hormone production in the gonads & male differentiation of the gonads & wolfian duct. If have sry, gonads shift from undifferentiated to male 6wks after gestation, shrinkage of female structures.

Related Questions

41. Sex is based upon ________ characteristics that distinguish males from females, while gender refers to a(n) ________ characteristic a)internal , external b)biological , social c)preferential, establish d)mental, physical

The next range of questions (7-16) assess the various phenotype characteristics of individuals (under the âHuman Developmentâ tab, under the âphenotypeâ spectrum descriptions). It may be helpful to keep track of each of these characteristics by filling out the table that is posted in your quiz description. Which of the following would be found in a person with a 46, XX karyotype without any gene mutations? [Select all that apply]

		Female external genitalia
		Barr body
		Low testosterone, in comparison to estrogen
		SRY gene

1.75000 points

QUESTION 8

Which of the following would be found in a person with a 46, XX karyotype, with a CYP21A2 gene mutation? [Select all that apply]

		Female external genitalia
		Male external genitalia
		Barr body
		High testosterone
		SRY gene
		Decreased fertility

1.75000 points

QUESTION 9

Which of the following would be found in a person with a 46, XY karyotype, with a SRY gene mutation? [Select all that apply]

		Female external genitalia
		Male external genitalia
		Barr body
		SRY gene

QUESTION 13

Which of the following would be found in a person with a 46, XX karyotype with the SRY gene present? [Select all that apply]

		Female external genitalia
		Male external genitalia
		Barr body
		Low testosterone compared to 46, XY men without genetic mutations
		Decreased fertility

1.75000 points

QUESTION 14

Which of the following would be found in a person with a 46, XX karyotype with a SRD5A2 gene mutation? [Select all that apply]

		Female external genitalia, before puberty
		Male external genitalia, after puberty
		SRY
		Barr body

1.75000 points

QUESTION 15

Which of the following would be found in a person with a 46, XX karyotype with an AMH or AMHR2 gene mutation? [Select all that apply]

		Male external genitalia
		Female internal anatomy
		Male internal anatomy
		SRY
		Barr body
		High testosterone

HMB200H1 Lecture Notes - Lecture 15: Pituitary Gland, Anterior Commissure, Labia Minora

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