genetika Flashcards

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1
Q

kaj je dna

A

je genetski material v vseh živih organizmih

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2
Q

kaj je zapisano v dna

A

kako tvoriti beljakovine ki določajo lastnosti

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3
Q

kje se nahaja dna

A

nahaja se v jedru naših celic
zvita v kromatinske niti
pred delitvijo se zvije v kromosone

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4
Q

kakšna je zgradba dna

A

dvojna vijačnica

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5
Q

iz česa je vsaka veriga sestavljena

A

nukleotidov ki sestavlja
dušikova baza-adenin timin gvanin citozin-
sladkor
fosfatna skupina

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6
Q

mitoza

A

telesna celica
za rast in obnovo
nastaneta 2 celici ki sta se med seboj enaki
ima 46 kromosonov
ohranja št kromosonov
ni prekrižanja

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7
Q

mejoza

A

spolne celice
4 različne celice
za razmnoževanje
23 kromosonov
ne ohranja št kromosonov
se prekriža

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8
Q

hemofilija

A

prirojena motnja strjevanja krvi

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9
Q

rodovnik

A

kako preučevanje lastnosti deluje

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10
Q

fenotip

A

lastnost posameznika ki so posledice genotipa in okolja

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11
Q

genotip

A

genetski zapis posameznika

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12
Q

intermediarnost

A

izrazi se vmesna lastnost

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13
Q

kodominantnost

A

lastnosti se izrazita

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14
Q

gen

A

zapis za neko lastnost odsek na molekuli dna

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15
Q

alel

A

različica gena na homolognem kromosonu

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16
Q

homozigot

A

dva ista alela

17
Q

heterozigot

A

dva različna alela

18
Q

dominantna lastnost

A

je lastnost ki prevlada
velika črka

19
Q

recesivna lastnost

A

je lastnost ki ostane prekrita
mala črka