BI 132 Lecture Notes - Lecture 11: Teiidae, Coelenterata, Parthenogenesis
1 Nov 2018
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Bi 132 lecture 11 mating systems. Which of the following is not an example of an intrasexually selected trait: dominance contests, mate guarding, mate cannibalism, female mimicry. Intrasexual selection: traits that allow males to compete with one another. Intersexual selection: traits that have evolved due to female choice. Asexual reproduction: examples, insects, coelenterates like anemones, whiptail lizard parthenogenesis. Sexual reproduction: gametes (sperm and egg) from two individuals, each offspring gets 50% of parent"s alleles (or half of each parent"s chromosomes, meiosis: process of forming gametes (eggs and sperm) cuts chromosome number in half. Which of the following is a cost of sexual reproduction? a all of the offspring are genetically identical. There is a lot of variability among offspring c parents pass on only half their chromosomes to their offspring d parents pass on all their chromosomes to their offspring.
