DNA e RNA Flashcards

1
Q

quais são as bases nitrogenadas do DNA?

A

timina (T), adenina (A), guanina(G), citosina (C)

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2
Q

quais são as bases nitrogenadas do RNA?

A

adenina (A), guanina (G), citosina (C), uracila (U)

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3
Q

o que são ácidos nucléicos?

A

polímeros formados por nucleotídeos

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4
Q

o que são nucleotídeos?

A

são compostos orgânicos formados por uma base nitrogenada, uma pentose e um íon fosfato

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5
Q

qual a pentose dos nucleotídeos no DNA?

A

desoxirribose

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6
Q

qual a pentose dos nucleotídeos no RNA?

A

ribose

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7
Q

qual o componente químico que é específico no DNA e ausente no RNA?

A

timina (T) e a pentose do tipo desoxirribose

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8
Q

oq ocorre na intérfase?

A

o DNA sofre replicação e autoduplicação (processo semiconcervativo)

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9
Q

quais as enzimas atuam na replicação do DNA?

A

helicases, DNA polimerase e ligase

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10
Q

oq ocorre na autoduplicação?

A

preservação das mesmas informações genéticas (genomas) nas células filhas

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11
Q

oq são éxons?

A

regiões que serão unidas no processamento do RNA

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12
Q

oq são íntrons?

A

região entre os éxons

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13
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13
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13
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