multi-cellular eukaryotes Flashcards
what is the theory of endosymbiosis
mitochondria and chloroplasts are thought to have evolved by engulfment of bacteria by a primitve eukaryotic cell
what is didinium
a carnivorous protozoan= paralyse single cells
what are unique features of the nuclues
linear chromosome
what are 4 theories of the emergence of the nucleus
invaginations of plasma membrane
endosymbiosis
molcular sququence data-phylogenies(chimera from G- bacteria consuming archae)
the inside out theory
what is the inside out theory
bacteria englufed via an archaea
consumed bacteria to mitochondria
what is an example of a genetic epigenetic factors
methylation
what does methylation do
regulates gene expression
what is dictyostelium
the slime mould
describe the slime mould
free lliving amoeba- survive by feeding on bacteria
reproduce by forming fruiting bodies
describe process of ameoba reproducution in slime mould
determine a fate for themselves
some cells form a base, some form a stalk
others formspores to regenerate
what are volvox and chlamydomas
algae that developed similarly through evolution
what are chlamydomas
single cellular
must stop moving to reproduce
what are volvodox
multicellular
flagella
doesnt need to reabsorb tails when reproducing
how do genomes arise
by epigenetic factors for multicellularity
