BIOLOGY 1M03 Lecture Notes - Lecture 25: Heterozygote Advantage, Zygosity, Anisogamy
6 May 2019
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Females tend to disperse farther than males: or both sexes "shotgun disperse" after fledging, e. g. In mammals: typically males disperse once reaching maturity, this occurs because inbreeding has negative effects, breeding with kin increases homozygosity, loss of heterozygosity (reduced heterozygote advantage) Is a common human trait: breeding with kin increases homozygosity ( a bad thing) Minor marriage in taiwan: arranged marriage, betrothed prospective bride adopted by groom"s family during infancy. Females tend to be coy and choosy: males of most species are generally indiscriminant, males tend to be competitive and indiscriminant, anisogamy: morphologically dissimilar gametes. In most species females are limited by egg production: males are limited by mate acquisition. Investment that increases offspring survival at a cost to the parent"s ability to invest in other young. Female parental investment is greater than male parental investment. Female reproductive success is limited by its ability to raise offspring: male reproductive success is limited by access to fertilized eggs.
