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PCHSBiology10chap7
Chapter 7 words
Question | Answer |
---|---|
Meiosis | a process in cell division during which the number of chromosomes decreases to half the original number by 2 divisions of the nuclus which results in the production |
Crossing Over | the exchange of dengetic material between homolegous chromosomes during meiosis; can result in genetic recombination |
Interdependent Assortment | the random distribution of the pairs of genes on different chromosomes to the gametes |
spermatogenesis | the process by which male gametes form |
oogenesis | the production growth and maturation of an egg or ovum |
ovum | a mature egg cell |
asexual reproduction | reproduction that does not involve the union of gametes and in which a single parent produces offspring that a genetically identical to the parent |
clone | an organism that is produced by asexual reproduction and that is gentically identical to its parent; to make a genetic duplicate |
sexual reproduction | reproduction in which gametes from two parents unite |
life cycle | all the events in the growth and development of an organism until the organism reaches sexual maturity |
fertilization | the union of a male and female gamete to form a zygote |
sporophyte | in plants and algae that have alteration of generations, the diploid individual or generation that produces haploid spores |
spore | a reproductive cell or multi-cellular structure that is resistant to enviromental conditions and that can develop into an adult without fussion with another cell |
Gametopyte | in alteration of generations the phase in which gametes are formed a haploid individual that produces a gamete |