Bio 102 Exam 2 Outline

Bio 102 Exam 2 Outline - 1) Reproduction a) Asexual...

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1) Reproduction a) Asexual reproduction i) Involves splitting, budding or fragmentation of the parent ii) Beneficial when population density is low and are not mates readily available iii) Parthenogenesis is the development of an unfertilized egg into an adult (1) Common amongst mollusks, crustaceans, insects and some reptiles (2) This usual alternates with sexual reproduction iv) Fastest way to achieve reproduction b) Sexual reproduction i) Male – sperm; female – ovum; each provides unique genetic information ii) Sperm are small and motile; eggs are large and nonmotile iii) Internal fertilization is more reliable; female body provides watery medium for sperm movement and houses the developing embryo iv) Hermaphroditism is a form of sexual reproduction in which a single organism has both eggs and sperm v) Some hermaphrodites are both male and female at the same time; others are functionally one sex and then the other vi) It maintains diversity in a species; by mixing genetic components and recombining them, the offspring is much more complex and able to adapt to a changing environment and may be able to better survive than either parent vii)Sexual selection removes harmful mutations
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This note was uploaded on 04/02/2008 for the course BIO 101 taught by Professor Martin during the Spring '08 term at Rutgers.

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Bio 102 Exam 2 Outline - 1) Reproduction a) Asexual...

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