DNA y RNA Flashcards

1
Q

estructura del ADN

A

formada por nucleótidos
doble cadena
antiparalela
giro helicoidal
complemetaria

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2
Q
A
  1. surco mayor
  2. surco menor
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3
Q

histonas

A

H2A, H2B, H3,H4

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4
Q

nucleosoma

A

octámero de histonas, dos vueltas de DNA + H1

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5
Q

DNA enlace

A

el DNA libre entre cada nucleosoma

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6
Q

niveles de compactación

A

nucleosoma

cromatosoma 10nm
solenoide (30nm)
bucles de solenoide/asas cromatínicas (300nm)
cromosoma condensado (700nm)
cromosoma en metafase

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7
Q

contiene uracilo

A

RNA

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8
Q

contiene la info genética del DNA

A

mRNA

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9
Q

tRNA

A

estructura en bucles, transporte de aminoácidos, anticodon

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10
Q

rRNA

A

subunidad mayor 60S 5S 5.8S 28S + 49proteínas
subunidad menor 40S 18S + 33 proteínas

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11
Q

EPA

A

A admission
P peptide
E exit

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