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Apostila Citogenética e Genética no Vestibular

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01. (Unifesp) Analise o diagrama. 
 
Indique a alternativa que identifica 
corretamente os conceitos 
correspondentes a 1, 2, 3 e 4. 
a) 1 = em células diploides; 2 = na mitose; 3 
= na meiose; 4 = em células haploides. 
b) 1 = em células haploides; 2 = na meiose; 
3 = na mitose; 4 = em células diploides. 
c) 1 = na meiose; 2 = em células haploides; 
3 = na mitose; 4 = em células diploides. 
d) 1 = na meiose; 2 = na mitose; 3 = em 
células diploides; 4 = em células 
haploides. 
e) 1 = na mitose; 2 = em células diploides; 3 
= em células haploides; 4 = na meiose. 
 
 
 
 
 
 
 
 
 
 
 
 
02. (Unifesp) Analise a figura 
 
A figura representa um cromossomo em 
metáfase mitótica. Portanto, os números 
I e II correspondem a: 
a) cromossomos emparelhados na meiose, 
cada um com uma molécula diferente de 
DNA. 
b) cromátides não-irmãs, cada uma com 
uma molécula idêntica de DNA. 
c) cromátides-irmãs, cada uma com duas 
moléculas diferentes de DNA. 
d) cromátides-irmãs, com duas moléculas 
idênticas de DNA. 
e) cromossomos duplicados, com duas 
moléculas diferentes de DNA. 
 
03. (Unifesp) Com a finalidade de 
bloquear certas funções celulares, um 
pesquisador utilizou alguns 
antibióticos em uma cultura de células 
́ ́ 
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ps:
de camundongo. Entre os antibióticos 
usados, a tetraciclina atua 
diretamente na síntese de proteína, a 
mitomicina inibe a ação das 
polimerases do DNA e a 
estreptomicina introduz erros na 
leitura dos códons do RNA 
mensageiro. 
Esses antibióticos atuam, 
respectivamente, no: 
a) ribossomo, ribossomo, núcleo. 
b) ribossomo, núcleo, ribossomo. 
c) núcleo, ribossomo, ribossomo. 
d) ribossomo, núcleo, núcleo. 
e) núcleo, núcleo, ribossomo. 
 
04. (Unifesp) Leia os dois textos a seguir. 
No futuro, será possível prescrever 
uma alimentação para prevenir ou 
tratar doenças como obesidade e 
diabetes, baseando-se na análise do 
CÓDIGO GENÉTICO de cada paciente 
(...).