sexual reproduction Flashcards
sexual reproduction
fusion of 2 sex cells from 2 parents to produce genetically unique offspring
advanatges
adpat to changing envrionments
long term survival
disadvanatges
special organs needed , resource intensive
Meiosis
production of haploid gametes from dilpod parent cells
2 phases meiosis 1
division where homologous chromosome seperates
meiosis 2
similar to mitosis sister chromatids seperate
Stages of Meiosis
interphase
prophase
metaphase
anaphase
telophase
prophase 2
metaphase 2
anaphase2
telophase 2
Meiosis 1 run through
interphase - telophase 1
genetic variation: crossing over
genetic material between homlougs chromosome - prophase
genetic variation: indpeendent assortment
random orientation of chromosomes metaphase 1 and 2
genetic variation: fertilization
combining 2 genetically unique gametes
