WGS160Y1 Lecture Notes - Heteronormativity, Heterosexuality, Sarah Blaffer Hrdy

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whitecrab978

19 Jun 2012

School

UTSG

Department

Women and Gender Studies

Course

WGS160Y1

Professor

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Document Summary

Wilson believes only two sexes, males active in reproduction females are passive, resulting from different investment between being a sperm producer or ova producer. Those that have ova are more invested in offspring because females only have few eggs, while men have plentiful sperm. Therefore women are more cautious when picking a partner due to limited eggs, while men do no need to be cautious. Underlying assumption everyone interested in genetic immortality. David buss cites two theoretical backgrounds for evolution of mate preferences: parental investment and sexual selection, mate preferences as evolved psychological mechanisms. Parental investment not enough to simply have a fertilized egg, it needs to be born, live and reproduce itself. If we don"t succeed we are seen as dead-ends . Heteo-sexuality seen as norm in this view, only important relationship. Must assign reproductive value to all potential mates. Human evolutionary/ socio-biology: central principle, specific application to humans (darwin, wilson)

Related Questions

What underlying difference in the reproductive biology of males and females drives sexual selection? (In other words, why is it usually males whose morphologies are conspicuously shaped by sexual selection, rather than females) What are some of the possible outcomes of sexual selection?

there could be more than one answer or no answer at all

1. _____ Females that reproduce sexually versus asexually are said to incur a âtwo-fold cost of sexual reproduction.â Which of the following costs are associated with sexual reproduction for females?

A) MALES! That do-nothing lot really does not directly contribute offspring to the next generation. Females would be better off making all daughters.

B) FEMALES! In most natural settings, those daughters compete with their mothers for potential mates and resources needed to successfully reproduce.

C) MITOSIS! Since sexual reproduction can produce many more offspring than asexual reproduction, there are energetic costs associated with the mitotic divisions required to produce those offspring.

D) MEIOSIS! Every time a gamete is produced, the parent loses a little bit of itself. Half to be precise since only half of its genes are passed on to sexually produced offspring.

E) DIVERSITY! Mothers maximize fitness if all offspring are genetically just like them. Sexual reproduction causes genetic diversity, which ultimately lowers the fitness of both parents.

Just to keep you in practice, a couple of the much beloved multiple multiple choiceâ¦

1. An increase in CO₂ levels in the blood directly or indirectly causes which of the following?

A) an increases in ventilation rate

B) a decrease in the pH

C) a decrease in hemogloginâs binding affinity for O₂

D) a decrease in the O₂ levels in the blood

E) an immediate increase in the number of red blood cells found in the blood stream

2. _____ Females that reproduce sexually versus asexually are said to incur a âtwo-fold cost of sexual reproduction.â Which of the following costs are associated with sexual reproduction for females?

A) MALES! That do-nothing lot really does not directly contribute offspring to the next generation. Females would be better off making all daughters.

B) FEMALES! In most natural settings, those daughters compete with their mothers for potential mates and resources needed to successfully reproduce.

C) MITOSIS! Since sexual reproduction can produce many more offspring than asexual reproduction, there are energetic costs associated with the mitotic divisions required to produce those offspring.

D) MEIOSIS! Every time a gamete is produced, the parent loses a little bit of itself. Half to be precise since only half of its genes are passed on to sexually produced offspring.

E) DIVERSITY! Mothers maximize fitness if all offspring are genetically just like them. Sexual reproduction causes genetic diversity, which ultimately lowers the fitness of both parents.

WGS160Y1 Lecture Notes - Heteronormativity, Heterosexuality, Sarah Blaffer Hrdy

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