3.1 5 Domains ,kingdoms or both? Flashcards

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1
Q

Gel electrophoresis

A

patterns in DNA or RNA fragments are used as species identification
also comparsion in amino acid sequences of similar proteins in different species
varation in chromatography separate DNA and RNA fragments or proteins or amino acids according their size and charge

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2
Q

process

A

wells filled with solution contain fragments
agarose plate buffer
restriction enzymes used
move towards positive electrode shorter fragments move faster and therefore further than longer fragments

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3
Q

buffer solution

A

to maintain a constant pH

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4
Q

Reference

A

known DNA or RNA fragments,proteins or amino acids to aid identifcation

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5
Q

gel

A

contains dye that will bind to fragments and will fluoresce when placed under ub

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6
Q

dye

A

also added to DNA smaples does not bind to the DNA but moves through gel slightly faster than DNA so current can be switched off before all the samples run of the end

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7
Q

move towards

A

anode as negative charge on phosphate groups in the DNA

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8
Q

when used to identify and compare amino acids in a particular protein

A

dyes not added to gel or mixture

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9
Q

endosymbiotic theory mitochondria

A

cell engulf aerobic prokaryote as food
oxygen levels in atmosphere increase as photosynthetic prokaryotes appear
by chance in some cells some of the aerobic prokaryote is not digested .It uses oxygen for celluar respiration more efficent respiration allows cell to grow and reproduce more rapidly
aerobic prokaryotes become permanent feautures as mitochondira copies are mades and passed onto daughter cells during reproduction

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10
Q

Bacteria

A
peptidoglycan cell wall
mebrane lipids ester linked unbranched 
70s ribosomes 
plasmids
1 RNA polymerase 
can photosynthesise
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11
Q

Archea

A

membrane lipids ester linked branched
70s ribsomes
plasmids
1 RNA polymerase

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12
Q

eukaryotes

A
mebrane bound organelles
ester linked unbranched mebrane lipids
80s ribosomes
3 RNA polymerase
can phototsynthesie
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13
Q

archea and bacteria

A

very different genetics

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14
Q

Archea

A

replicate by binary fission controlled within a cell cule different from replicated of bacteria

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15
Q

5 kingdoms

A

prokaryotes=Monera ,animals,plants,fungi and protista (single celled organisms and algae)

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16
Q

six-kingdom classifcation system

A

work done using biochemical and DNA evidence

17
Q

Archaebacteria

A

ancient bacteria include extremophiles -bacteria that can survive under extreme conditons
normally can reproduce asexually

18
Q

Eubacteria

A

true bacteria and cyanobacteria usually reproduce asexually

19
Q

Protista

A

single cell organisms green algae brown algae and slime moulds mainly reproduce asexually

20
Q

fungi

A

unicellular and multi cellular
all heterotrophs (cannot make own food have to eat over organisms )
reproduce sexually and asexually

21
Q

plantae

A

multicellular
autotrophs
asexual and sexual reproduction

22
Q

animalia

A

multi-cellular
heterotrophs
invertebrate and vertebrates
most sexual reproduction