BIOL 1081 Lecture Notes - Lecture 22: Metaphase, Mitosis, Telophase
Document Summary
Sexual reproduction reading: sections 13. 1-13. 2 in textbook: distinguish between sexual and asexual reproduction. Hypothesize about the potential evolutionary advantage of each approach. Advantages: time efficient; no need to search for mate, requires less energy. Disadvantages: no variation- if the parent has a genetic disease, offspring does too. Evolution: there is very little chance of variation with asexual repro. Mutations in dna can still occur but not nearly as frequently as in sexual repro. No formation or fusion od gametes (sex cells) Unit of repro. may be whole parent body or a bud or a fragment or a single somatic cell. Asexual repro. is completed in a very short period of time. Evolution: sexual repro. leads to genetic variation in new generations of offspring. Formation and fusion of gametes (sex cells) occurs. Unit of repro. is a gamete (sex cell) Sexual repro. can take several months to complete. They produce gametes in living organisms through sexual reproduction.
