Ácidos Nucleicos Flashcards

1
Q

o que faz a enzima polimerase?

A

sintetiza uma nova fita de dna a partir de uma fita molde

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2
Q

quais são os três RNAs?

A

rna transportador
rna mensageiro
rna ribossômico

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3
Q

enzima helicase

A

desenrolamento das hélices do Dna

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4
Q

enzima ligase

A

ligação de nucleotídeos da cadeia nova

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5
Q

a replicação do dna é denominada conservativa ou semiconservativa

A

semiconservativa

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6
Q

cadeias complementares …………

A

antiparalelas

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7
Q

o que une as cadeias de polinucleotídeos

A

ligações de hidrogênio

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8
Q

DNA
A=
=c

A

T e G

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9
Q

bases puricas

A

adenina e guanina

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10
Q

rna ribossômico

A

ocorre associado a proteínas, formando os ribossomos

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11
Q

rna mensageiro

A

leva a informação dos genes para a formação de polipeptídeo no citoplasma

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12
Q

rna transportador

A

leva os aminoácidos até o ribossomo no momento de síntese proteica

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13
Q

bases pirimídicas

A

timina e citosina

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