{"id":14640,"date":"2020-01-21T12:49:28","date_gmt":"2020-01-21T15:49:28","guid":{"rendered":"https:\/\/beduka.com\/blog\/?p=14640"},"modified":"2022-08-09T16:10:57","modified_gmt":"2022-08-09T19:10:57","slug":"exercicios-sobre-dna","status":"publish","type":"post","link":"https:\/\/beduka.com\/blog\/exercicios\/biologia-exercicios\/exercicios-sobre-dna\/","title":{"rendered":"Os 10 melhores exerc\u00edcios sobre DNA, com gabarito!"},"content":{"rendered":"\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><strong><em>O DNA (\u00c1cido Desoxirribonucleico) tem como uma das suas principais fun\u00e7\u00f5es armazenar a informa\u00e7\u00e3o gen\u00e9tica do seres vivos. Por meio dele os organismos transmitem suas caracter\u00edsticas para a futura gera\u00e7\u00e3o. Leia o resumo e teste seus conhecimentos com a nossa sele\u00e7\u00e3o dos melhores exerc\u00edcios sobre DNA<\/em><\/strong>!<\/p><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Se quiser ir diretamente para alguma parte do texto,&nbsp;<strong>clique em um dos t\u00f3picos abaixo:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"#dna\" data-type=\"internal\" data-id=\"#dna\">O que \u00e9 DNA?<\/a><\/li><li><a href=\"#composi\u00e7\u00e3o\" data-type=\"internal\" data-id=\"#composi\u00e7\u00e3o\">Como \u00e9 a composi\u00e7\u00e3o do DNA?<\/a><\/li><li><a href=\"#estrutura\" data-type=\"internal\" data-id=\"#estrutura\">Como \u00e9 a estrutura do DNA?<\/a><\/li><li><a href=\"#fun\u00e7\u00f5es\" data-type=\"internal\" data-id=\"#fun\u00e7\u00f5es\">Quais s\u00e3o as fun\u00e7\u00f5es do DNA?<\/a><\/li><li><a href=\"#diferen\u00e7a\" data-type=\"internal\" data-id=\"#diferen\u00e7a\">Qual \u00e9 a diferen\u00e7a entre DNA e RNA?<\/a><\/li><li><a href=\"#replica\u00e7\u00e3o-e-transcri\u00e7\u00e3o\" data-type=\"internal\" data-id=\"#replica\u00e7\u00e3o-e-transcri\u00e7\u00e3o\">Replica\u00e7\u00e3o e Transcri\u00e7\u00e3o<\/a><\/li><li><a href=\"#exerc\u00edcios\" data-type=\"internal\" data-id=\"#exerc\u00edcios\">Exerc\u00edcios sobre DNA<\/a><\/li><li><a href=\"#gabarito\" data-type=\"internal\" data-id=\"#gabarito\">Gabarito dos exerc\u00edcios sobre DNA<\/a><\/li><li><a href=\"#faculdade\" data-type=\"internal\" data-id=\"#faculdade\">N\u00f3s conectamos voc\u00ea \u00e0 faculdade!<\/a><\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Treine mais quest\u00f5es com o&nbsp;<a href=\"https:\/\/beduka.com\/simulado-enem\/#\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Simulado Enem do Beduka<\/strong><\/a>! Ele \u00e9&nbsp;<strong>100% gratuito<\/strong>&nbsp;e&nbsp;<strong>personaliz\u00e1vel<\/strong>, foque nas disciplinas que mais precisa e&nbsp;<strong>fa\u00e7a quantas vezes quiser!<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"dna\">O que \u00e9 DNA?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O \u00e1cido desoxirribonucleico, que tem como sigla DNA \u00e9 um \u00e1cido nucleico respons\u00e1vel pelo <strong>armazenamento da informa\u00e7\u00e3o gen\u00e9tica<\/strong> presente nos seres vivos.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A mol\u00e9cula de DNA \u00e9 composta por nucleot\u00eddeos, e possui um formato de dupla-h\u00e9lice.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e1 os seres eucariontes e procariontes, ambos s\u00e3o compostos pelo DNA. Por\u00e9m, o DNA&nbsp; nos seres eucariontes est\u00e1 localizado no n\u00facleo da c\u00e9lula, nas mitoc\u00f4ndrias e nos cloroplastos. J\u00e1 nos seres procariontes, o DNA n\u00e3o possui uma delimita\u00e7\u00e3o por membrana, ela se encontra em uma regi\u00e3o chamada nucle\u00f3ide.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"composi\u00e7\u00e3o\">Como \u00e9 a composi\u00e7\u00e3o do DNA?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ele \u00e9 formado por <strong>nucleot\u00eddeos<\/strong>, que s\u00e3o separados em tr\u00eas partes:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Uma carboidrato pentose (cinco carbonos);<\/li><li>Um ou mais grupos fosfato;<\/li><li>Uma base nitrogenada.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e1 tamb\u00e9m a presen\u00e7a do a\u00e7\u00facar, uma desoxirribose, ou seja, uma pentose que possui uma hidroxila a menos, quando comparado a ribose.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"estrutura\">Como \u00e9 a estrutura do DNA?<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"300\" src=\"https:\/\/beduka.com\/blog\/wp-content\/uploads\/2020\/01\/Estrutura-do-DNA.jpg\" alt=\"\" class=\"wp-image-14642\" srcset=\"https:\/\/beduka.com\/blog\/wp-content\/uploads\/2020\/01\/Estrutura-do-DNA.jpg 600w, https:\/\/beduka.com\/blog\/wp-content\/uploads\/2020\/01\/Estrutura-do-DNA-300x150.jpg 300w, https:\/\/beduka.com\/blog\/wp-content\/uploads\/2020\/01\/Estrutura-do-DNA-320x160.jpg 320w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">O DNA \u00e9 constitu\u00eddo por <strong>duas cadeias de polinucleot\u00eddeos<\/strong> formadas pelos nucleot\u00eddeos, que s\u00e3o conectados pela<strong> liga\u00e7\u00e3o fosfodi\u00e9ster<\/strong>, que nada mais \u00e9 do que o grupo fosfato que liga dois a\u00e7\u00facares de dois nucleot\u00eddeos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A uni\u00e3o dos nucleot\u00eddeos gera uma sequ\u00eancia padronizada de liga\u00e7\u00e3o, que ent\u00e3o forma a cadeia principal. A cadeia principal abriga as bases nitrogenadas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Temos duas cadeias de polinucleot\u00eddeos presentes no DNA que geram uma dupla-h\u00e9lice. As principais cadeias se encontram na parte externa da h\u00e9lice. No interior est\u00e3o localizadas as bases nitrogenadas que se unem por liga\u00e7\u00f5es de hidrog\u00eanio.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As duas cadeias s\u00e3o unidas devido \u00e0s liga\u00e7\u00f5es entre as bases nitrogenadas.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"fun\u00e7\u00f5es\">Quais s\u00e3o as fun\u00e7\u00f5es do DNA?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O DNA \u00e9 essencial para os seres vivos, pois ele armazena e transmite informa\u00e7\u00f5es gen\u00e9ticas, por isso existem semelhan\u00e7as entre parentes por exemplo. Al\u00e9m disso, o DNA funciona como um quebra cabe\u00e7a para a s\u00edntese da mol\u00e9cula de RNA, ou seja, s\u00edntese de prote\u00ednas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"diferen\u00e7a\">Qual a diferen\u00e7a entre DNA e RNA?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Apesar do DNA e o RNA serem tipos de \u00e1cidos nucleicos formados por subunidades de nucleot\u00eddeos ligados por liga\u00e7\u00f5es fosfodi\u00e9ster, possuem caracter\u00edsticas diferentes diferen\u00e7as, como:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>O DNA possui desoxirribose como a\u00e7\u00facar, ao contr\u00e1rio do RNA que possui uma ribose.<\/li><li>O DNA possui duas fitas, e o RNA \u00e9 possui uma fita.<\/li><li>As bases nitrogenadas localizadas no DNA s\u00e3o citosina, guanina, adenina e timina.<\/li><li>As bases nitrogenadas do RNA, s\u00e3o citosina, guanina, adenina e uracila.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"replica\u00e7\u00e3o-e-transcri\u00e7\u00e3o\">Replica\u00e7\u00e3o e Transcri\u00e7\u00e3o<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Replica\u00e7\u00e3o<\/strong> \u00e9 o processo no qual ocorre c\u00f3pias id\u00eanticas \u00e0 c\u00f3pia de uma mol\u00e9cula de DNA. J\u00e1 o processo de<strong> transcri\u00e7\u00e3o <\/strong>\u00e9 aquele em que o DNA serve como aux\u00edlio para a forma\u00e7\u00e3o de uma mol\u00e9cula de RNA.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Agora que voc\u00ea conhece mais a respeito do assunto, responda as nossa lista com os melhores exerc\u00edcios sobre DNA!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"exerc\u00edcios\">Exerc\u00edcios sobre DNA<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Quest\u00e3o 1 &#8211; (<a rel=\"noreferrer noopener\" aria-label=\"PUC-SP (abre numa nova aba)\" href=\"https:\/\/www5.pucsp.br\/paginainicial\/\" target=\"_blank\">PUC-SP<\/a>)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">[\u2026] De outro lado, o galard\u00e3o de qu\u00edmica ficou com os inventores de ferramentas para estudar prote\u00ednas, os verdadeiros atores do drama molecular da vida.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c9 verdade que a Funda\u00e7\u00e3o Nobel ainda fala no DNA como o diretor da cena a comandar a a\u00e7\u00e3o das prote\u00ednas, mas talvez n\u00e3o seja pretensioso supor que foi um lapso, e que o sinal emitido por essas premia\u00e7\u00f5es aponta o verdadeiro futuro das pesquisas biol\u00f3gicas e m\u00e9dicas muito al\u00e9m do genoma e de seu sequenciamento (uma simples soletra\u00e7\u00e3o). (\u2026)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">* LEITE, Marcelo. De volta ao sequenciamento. Folha de S. Paulo- 20 out. 2002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O autor refere-se \u00e0s prote\u00ednas como \u201catores do drama molecular\u201d e ao DNA como \u201cdiretor de cena\u201d. Essa refer\u00eancia deve-se ao fato de:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>a) <\/strong>n\u00e3o ocorrer uma correla\u00e7\u00e3o funcional entre DNA e prote\u00ednas no meio celular.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>b)<\/strong> o DNA controlar a produ\u00e7\u00e3o de prote\u00ednas e tamb\u00e9m atuar como catalisador de rea\u00e7\u00f5es qu\u00edmicas celulares.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>c)<\/strong> o material gen\u00e9tico ser constitu\u00eddo por prote\u00ednas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>d) <\/strong>as prote\u00ednas n\u00e3o terem controle sobre o metabolismo celular.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>e)<\/strong> o DNA controlar a produ\u00e7\u00e3o de prote\u00ednas e estas controlarem a atividade celular.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Quest\u00e3o 2 &#8211; (<a rel=\"noreferrer noopener\" aria-label=\"UFMG (abre numa nova aba)\" href=\"https:\/\/ufmg.br\/\" target=\"_blank\">UFMG<\/a>)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Se o total de bases nitrogenadas de uma sequ\u00eancia de DNA de fita dupla \u00e9 igual a 240, e nela existirem 30% de adenina, o n\u00famero de mol\u00e9culas de guanina ser\u00e1:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>a)<\/strong> 48.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>b)<\/strong> 72.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>c) <\/strong>120.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>d) <\/strong>144.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>e) <\/strong>168.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Quest\u00e3o 3 &#8211; (<a rel=\"noreferrer noopener\" aria-label=\"UFSM (abre numa nova aba)\" href=\"https:\/\/www.ufsm.br\/\" target=\"_blank\">UFSM<\/a>)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Numere a segunda coluna de acordo com a primeira.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Coluna 1<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1 \u2013 DNA<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2 \u2013 RNA<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Coluna 2<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">( ) Dupla h\u00e9lice<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">( ) Ribose<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">( ) Fita \u00fanica ou simples<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">( ) Desoxirribose<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">( ) Bases nitrogenadas: adenina, guanina, citosina, timina<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">( ) Bases nitrogenadas: adenina, guanina, citosina, uracila<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A sequ\u00eancia correta \u00e9:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>a)<\/strong> 1 \u2013 2 \u2013 1 \u2013 2 \u2013 2 \u2013 1<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>b)<\/strong> 2 \u2013 1 \u2013 1 \u2013 2 \u2013 2 \u2013 2<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>c)<\/strong> 1 \u2013 2 \u2013 2 \u2013 1 \u2013 1 \u2013 2<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>d)<\/strong> 2 \u2013 1 \u2013 2 \u2013 1 \u2013 1 \u2013 2<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>e)<\/strong> 1 \u2013 1 \u2013 2 \u2013 2 \u2013 2 \u2013 1<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Opa, j\u00e1 foram tr\u00eas exerc\u00edcios sobre DNA. <strong>Voc\u00ea est\u00e1 indo bem!<\/strong><\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Quest\u00e3o 4 &#8211; (FEP-PA)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O DNA e o RNA s\u00e3o constitu\u00eddos de muitas unidades, os nucleot\u00eddeos. Cada nucleot\u00eddeo \u00e9 constitu\u00eddo por um grupo fosfato, uma pentose e uma base nitrogenada. A diferen\u00e7a entre DNA e RNA est\u00e1:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>a)<\/strong> na pentose e nas bases nitrogenadas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>b)<\/strong> no fosfato e nas bases nitrogenadas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>c)<\/strong> na pentose e no fosfato.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>d)<\/strong> na pentose, nas bases nitrogenadas e no fosfato.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>e) <\/strong>apenas nas bases nitrogenadas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Quest\u00e3o 5 &#8211; (<a rel=\"noreferrer noopener\" aria-label=\"UFMG 2008 (abre numa nova aba)\" href=\"https:\/\/ufmg.br\/\" target=\"_blank\">UFMG<\/a>)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A composi\u00e7\u00e3o de bases nitrogenadas do DNA total isolado de c\u00e9lulas de tecido epitelial de um vertebrado apresenta estes percentuais: A = 20%;T = 20%;G = 30%;C = 30%.Considerando-se essas informa\u00e7\u00f5es e outros conhecimentos sobre o assunto, \u00e9 INCORRETO afirmar que essa composi\u00e7\u00e3o de bases nitrogenadas<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>a)<\/strong> \u00e9 igual \u00e0 de outras c\u00e9lulas som\u00e1ticas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>b)<\/strong> permanece inalterada ao longo da vida.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>c) <\/strong>se reduz \u00e0 metade nos gametas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>d) <\/strong>varia entre indiv\u00edduos de esp\u00e9cies diferentes.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Metade dos exerc\u00edcios sobre DNA respondidos! Vamos l\u00e1! Mais cinco pela frente!<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Quest\u00e3o 6 &#8211; (<a href=\"https:\/\/www.fuvest.br\/\">FUVEST<\/a>)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O DNA extranuclear (ou seja, de organelas citoplasm\u00e1ticas) foi obtido de c\u00e9lulas som\u00e1ticas de tr\u00eas organismos: uma planta, um fungo e um animal.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na tabela, qual das alternativas cita corretamente a proced\u00eancia do DNA extranuclear obtido desses organismos?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>a)<\/strong> <strong>Planta: <\/strong>plastos. <strong>Fungo: <\/strong>ribossomos. <strong>Animal:<\/strong> ribossomos e mitoc\u00f4ndrias<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>b)<\/strong> <strong>Planta:<\/strong> plastos e ribossomos<strong> Fungo: <\/strong>plastos e ribossomos <strong>Animal:<\/strong> ribossomos<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>c) Planta:<\/strong> mitoc\u00f4ndrias <strong>Fungo:<\/strong> mitoc\u00f4ndrias e plastosAnimal: ribossomos e mitoc\u00f4ndrias<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>d)<\/strong> <strong>Planta: <\/strong>mitoc\u00f4ndrias e plastos <strong>Fungo:<\/strong> mitoc\u00f4ndrias e plastos<strong> Animal: <\/strong>mitoc\u00f4ndrias<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>e)<\/strong> <strong>Planta:<\/strong> mitoc\u00f4ndrias e plastos <strong>Fungo:<\/strong> mitoc\u00f4ndrias <strong>Animal: <\/strong>mitoc\u00f4ndrias<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Quest\u00e3o 7 &#8211; (<a href=\"https:\/\/www.ufmt.br\/\" data-type=\"URL\" data-id=\"https:\/\/www.ufmt.br\/\" target=\"_blank\" rel=\"noreferrer noopener\">UFMT<\/a>) <\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A mol\u00e9cula de DNA possui dois filamentos de polinucleot\u00eddios ligados um ao outro pelas bases nitrogenadas formadas por uma h\u00e9lice dupla.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Assinale a alternativa que apresenta o pareamento t\u00edpico da base que tem como primeira sequ\u00eancia:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CAACTCGTA<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>a) <\/strong>GTTATGCAT<br><strong>b) <\/strong>GAAGAGCTA<br><strong>c) <\/strong>GTTGAGCAT<br><strong>d) <\/strong>ATTGAGCAT<br><strong>e) <\/strong>AAAGAGCAT<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Quest\u00e3o 8 &#8211; (<a href=\"https:\/\/www.puc-rio.br\/index.html\" data-type=\"URL\" data-id=\"https:\/\/www.puc-rio.br\/index.html\" target=\"_blank\" rel=\"noreferrer noopener\">PUC-RJ<\/a>) <\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Com o advento da Biologia Molecular, o ser humano conseguiu realizar in\u00fameras fa\u00e7anhas como identificar pessoas que estiveram em determinados locais, realizar testes de paternidade e determinar a rela\u00e7\u00e3o filogen\u00e9tica entre diferentes seres vivos, atrav\u00e9s do sequenciamento e homologia dos \u00e1cidos desoxirribonucleicos de cada indiv\u00edduo. Esse \u00e1cido tem como caracter\u00edstica ser uma mol\u00e9cula polim\u00e9rica de fita<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>a) <\/strong>Simples, composta por pentoses, bases nitrogenadas e fosfato.<br><strong>b) <\/strong>Dupla, composta de pentoses, bases nitrogenadas e fosfato.<br><strong>c) <\/strong>Dupla, composta por hexoses, amino\u00e1cidos e nitrog\u00eanio.<br><strong>d) <\/strong>Dupla, composta por nucleot\u00eddeos ligados por pontes de enxofre.<br><strong>e) <\/strong>Simples, composta por nucleot\u00eddeos ligados por pontes de hidrog\u00eanio.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>S\u00f3 faltam dois exerc\u00edcios sobre DNA. <strong>Vamos at\u00e9 o fim!<\/strong><\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Quest\u00e3o 9 &#8211; (<a href=\"https:\/\/www.uff.br\/\" data-type=\"URL\" data-id=\"https:\/\/www.uff.br\/\" target=\"_blank\" rel=\"noreferrer noopener\">UFF<\/a>) <\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cAp\u00f3s o an\u00fancio hist\u00f3rico da cria\u00e7\u00e3o de vida artificial no laborat\u00f3rio do geneticista Craig Venter, o mesmo respons\u00e1vel pela decodifica\u00e7\u00e3o do genoma humano em 2001, o presidente dos EUA, Barack Obama, pediu a seus conselheiros especializados em biotecnologia para analisarem as consequ\u00eancias e as implica\u00e7\u00f5es da nova t\u00e9cnica.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">(O Globo on-line, 22\/05\/2010)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A experi\u00eancia de Venter ainda n\u00e3o explica como a vida come\u00e7ou, mas refor\u00e7a novamente que, sob determinadas condi\u00e7\u00f5es, fragmentos qu\u00edmicos s\u00e3o unidos para formar a principal mol\u00e9cula respons\u00e1vel pelo c\u00f3digo gen\u00e9tico da vida.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Para a s\u00edntese de uma mol\u00e9cula de DNA em laborat\u00f3rio, a partir de uma fita molde de DNA, al\u00e9m do primer, deve-se utilizar<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>a) <\/strong>Nucleot\u00eddeos de Timina, Citosina, Guanina e Adenina; DNA e RNA polimerase.<br><strong>b) <\/strong>Nucleot\u00eddeos de Timina, Citosina, Guanina e Uracila; e DNA polimerase.<br><strong>c) <\/strong>Nucleot\u00eddeos de Timina, Citosina, Guanina e Adenina; e DNA polimerase.<br><strong>d) <\/strong>Nucleot\u00eddeos de Timina, Citosina, Guanina e Uracila; e RNA polimerase.<br><strong>e) <\/strong>Nucleot\u00eddeos de Timina, Citosina, Guanina, Uracila e Adenina; e DNA polimerase.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Quest\u00e3o 10 &#8211; (<a href=\"https:\/\/portal.uel.br\/home\/\" data-type=\"URL\" data-id=\"https:\/\/portal.uel.br\/home\/\" target=\"_blank\" rel=\"noreferrer noopener\">UEL<\/a>) <\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Em 1953, James Watson e Francis Crick elucidaram a estrutura tridimensional da dupla h\u00e9lice de DNA e postularam que o pareamento espec\u00edfico de bases nitrogenadas sugere um poss\u00edvel mecanismo de c\u00f3pia para o material gen\u00e9tico. Baseado neste postulado, o processo de duplica\u00e7\u00e3o do DNA \u00e9 considerado como sendo semiconservativo porque:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>a) <\/strong>A dupla h\u00e9lice original permanece intacta e uma nova dupla h\u00e9lice \u00e9 formada.<br><strong>b)<\/strong> Os dois filamentos da dupla h\u00e9lice original se separam e cada um serve como molde para uma nova fita.<br><strong>c)<\/strong> Ambos os filamentos da dupla h\u00e9lice original se fragmentam e servem como moldes para s\u00edntese de novos fragmentos.<br><strong>d)<\/strong> Um dos filamentos da dupla h\u00e9lice original serve de c\u00f3pia para as duas fitas de DNA.<br><strong>e)<\/strong> Os filamentos da dupla h\u00e9lice original permutam as suas fitas para servirem de c\u00f3pias de DNA.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"gabarito\">Gabarito dos exerc\u00edcios sobre DNA<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Exerc\u00edcio resolvido da quest\u00e3o 1 &#8211;<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>e)<\/strong> o DNA controlar a produ\u00e7\u00e3o de prote\u00ednas e estas controlarem a atividade celular.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Exerc\u00edcio resolvido da quest\u00e3o 2 &#8211;<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>a)<\/strong> 48.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Exerc\u00edcio resolvido da quest\u00e3o 3 &#8211;<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>c)<\/strong> 1 \u2013 2 \u2013 2 \u2013 1 \u2013 1 \u2013 2<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Exerc\u00edcio resolvido da quest\u00e3o 4 &#8211;<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>a)<\/strong> na pentose e nas bases nitrogenadas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Exerc\u00edcio resolvido da quest\u00e3o 5 &#8211;<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>c)<\/strong> se reduz \u00e0 metade nos gametas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Exerc\u00edcio resolvido da quest\u00e3o 6 &#8211;<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>e)<\/strong> <strong>Planta:<\/strong> mitoc\u00f4ndrias e plastos <strong>Fungo:<\/strong> mitoc\u00f4ndrias <strong>Animal: <\/strong>mitoc\u00f4ndrias<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Exerc\u00edcio resolvido da quest\u00e3o 7 &#8211;<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>c) <\/strong>GTTGAGCAT<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Exerc\u00edcio resolvido da quest\u00e3o 8 &#8211;<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>b) <\/strong>Dupla, composta de pentoses, bases nitrogenadas e fosfato.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Exerc\u00edcio resolvido da quest\u00e3o 9 &#8211;<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>c) <\/strong>Nucleot\u00eddeos de Timina, Citosina, Guanina e Adenina; e DNA polimerase.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Exerc\u00edcio resolvido da quest\u00e3o 10 &#8211;<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>b)<\/strong> Os dois filamentos da dupla h\u00e9lice original se separam e cada um serve como molde para uma nova fita.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Esperamos ter ajudado com a nossa sele\u00e7\u00e3o<strong> <\/strong>dos <strong>melhores exerc\u00edcios sobre DNA.\u00a0<\/strong>Bons estudos!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"faculdade\">N\u00f3s conectamos voc\u00ea \u00e0 faculdade!<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nosso maior objetivo \u00e9 te ver cursando a faculdade dos seus sonhos e para isso sempre trazemos as melhores solu\u00e7\u00f5es.&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/beduka.com\/bolsas\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>J\u00e1 conhece o Beduka Bolsas?&nbsp;<\/strong><\/a><\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Na plataforma do\u00a0<strong>Beduka Bolsas<\/strong>\u00a0voc\u00ea pode adquirir uma bolsa de estudos com excelentes descontos na mensalidade.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Al\u00e9m de escolher entre\u00a0<strong>mais de 90 cursos<\/strong>\u00a0em uma de nossas\u00a0<strong>universidades parceiras.\u00a0<\/strong><a rel=\"noreferrer noopener\" href=\"https:\/\/beduka.com\/bolsas\" target=\"_blank\"><strong>Garanta j\u00e1 a sua bolsa!\u00a0<\/strong><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gostou dos nossos exerc\u00edcios sobre DNA? Compartilhe com os seus amigos e comente abaixo sobre \u00e1reas que voc\u00ea deseja mais explica\u00e7\u00f5es.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Receba nossos conte\u00fados di\u00e1rios e gratuitos seguindo o\u00a0<\/strong><a rel=\"noreferrer noopener\" href=\"https:\/\/www.instagram.com\/beduka_oficial\/\" target=\"_blank\"><strong>instagram<\/strong><\/a><strong>\u00a0e o\u00a0<\/strong><a rel=\"noreferrer noopener\" href=\"https:\/\/br.pinterest.com\/bedukaoficial\/\" target=\"_blank\"><strong>pinterest<\/strong><\/a><strong>!<\/strong>\u00a0Nessas redes postamos resumos sobre os principais assuntos do Enem e Vestibulares.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Queremos te ajudar a encontrar a <strong>FACULDADE IDEAL! <\/strong>Logo abaixo, fa\u00e7a uma pesquisa por curso e cidade que te mostraremos todas as faculdades que podem te atender. <strong>Informamos a nota de corte, valor de mensalidade, nota do MEC, avalia\u00e7\u00e3o dos alunos, modalidades de ensino e muito mais.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Experimente agora!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Quais s\u00e3o as principais fun\u00e7\u00f5es do DNA? Leia o resumo e teste seus conhecimentos com os exerc\u00edcios sobre DNA! Se prepare para a prova do ENEM.<\/p>\n","protected":false},"author":1,"featured_media":26596,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[603],"tags":[1575],"class_list":["post-14640","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-biologia-exercicios","tag-exercicios-sobre-dna"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Os 10 melhores exerc\u00edcios sobre DNA [com resumo + gabarito]<\/title>\n<meta name=\"description\" content=\"Quais s\u00e3o as principais fun\u00e7\u00f5es do DNA? Leia o resumo e teste seus conhecimentos com os exerc\u00edcios sobre DNA! 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