DNA y RNA Flashcards

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1
Q

Nucleótidos/ bases nitrogenadas del DNA

A

A,T,G,C

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2
Q

Nucleótidos/ bases nitrogenadas del RNA

A

A,U,G,C

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3
Q

Pirimidinas

A

Citosina
Timina/Uracilo

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4
Q

Purinas

A

Adenina
Guanina

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5
Q

Qué tiene la Ribosa

A

Grupo alcohol

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6
Q

Qué tiene la desoxiribosa

A

Un hidrógeno, no un alcohol

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7
Q

Nucleósido

A

Pentosa + base nitrogenada

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8
Q

Nucleótido

A

Pentosa + Base nitrogenada + Fosfato

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9
Q

Enlace que une a los nucleósidos

A

Enlace N-glucosídico

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10
Q

Enlace que une a los fosfatos (nucleótidos)

A

Ester

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11
Q

Orden en el que se unen los nucleótidosd

A

Del 5’ de un nucleótido al 3’ de siguiente nucleótido = cadena 5’-3’

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12
Q

Histonas

A

H1 (Hasta el final)

H2A
H2B
Dímero, x2 = tetrámero
H3
H4
Dímero x2= tetrámero

Los dos tetrámeros = octámero + H1= Cromatosoma

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13
Q

Compactación del DNA

A

DNA 2nm
Nucleosoma 10nm + H1= Cromatosoma
Fibra solenoida 30nm
Bucles de solenoide 300nm
Fibra de 700nm
Cromosoma

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14
Q

Tipos de RNA

A

Mensajero (Info genética)
Transferencia (Estructura de bucles y anticodón)
Ribosomal (Sedimentación)

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