GENOMA HUMANO Flashcards

1
Q

Cuántas pb tiene el genoma humano nuclear

A

3,200 M pb

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2
Q

marcas epigenéticas

A

metilación, acetilación: permite expresar o pagar ciertos genes

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3
Q

en qué se divide el genoma

A

en nuclear y mitocondrial

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4
Q

genoma mitocondrial

A

por herencia materna, circular, sin intrones, solo 5000 PB, poliploide

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5
Q

genoma nuclear

A

lineal, con intrones y exones, mayor tamaño, diploide en somáticas y haploide en germinales

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6
Q

GEN

A

secuencia de nucleótidos que codifica para una proteína o algo específico
* hay genes codificantes o no codificantes

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7
Q

ORF

A

codon de incio a codon de paro

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8
Q

de que se componen los genes

A
  • ORF
  • UTR
  • promotor
  • unidad transcripcional
  • elementos regulatorios –> potenciadores y silenciadores
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9
Q

dogma central

A

posibles flujos del dna

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10
Q

funcion de la telomerasa

A

es una retrotranscriptasa, que retrotranscribe para su RNA complementario a la cadena, copia sin necesidad, de la nada, encendida en situación normal y apagada en anormal, como el cáncer

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11
Q
A
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