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Biology - Chapter 7

Terms

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Louis Pasteur
1864; 1> boiled the infusion,
2> created a S-shaped flask to trap the micro organisms
3> proved that spontaneous generation was false
Francisco Redi
1668; tested the belief that maggots "appeared" on decaying meat; wanted to disprove spontaneous generation
biogenesis
living things are produced from other living things
surface area to volume ratio
cells need to fit through veins in the human body... thats y they are small
interphase
non-reproducing stage where the cell spends most of its time; this stage begins when cell reproduction is over

chromatin> strands of DNA found in the nucleus ((spools of thread))
mitosis
-2 identical sets of chromosomes distributed to daughter cells
-cell cycle is interphase & mitosis
PMAT
> prophase
> metaphase
> anaphase
> telophase
binary fission
process where prokaryotes replicate their DNA & distributes 2 copies to daughter cells
homologous/homologues
> homologous: similar in structure, in function, or both; the more homologous structures shared by different kinds of organisms, the closer their relationship

> homologues: in diploid cells, the two members of each pair of chromosomes that carry DNA with information for corresponding traits
diploid/haploid
> diploid: cells haveing 2 of each chromosome

> haploid: cells havingonly one chromosome from each homologous
sexual reproduction
reproduction involving production and fusion of egg and sperm to form a diploid zygote, which will develop into a mature multicellular adult
genetic recombination
the formation of new gene combinations during meiosis and sexual reproduction

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