Considering polymorphisms, which of the following statements is correct? I - Genetic variations that frequently occur in the human population with...
Considering polymorphisms, which of the following statements is correct?
I - Genetic variations that frequently occur in the human population without causing diseases are called polymorphisms.
II - SNP, or single nucleotide polymorphisms, are singular changes in the nucleotides that form the DNA.
III - Polymorphisms are changes in amino acids resulting from variations in the DNA sequence.
IV - There is no exact way to identify a polymorphism, only insertions and deletions.
V - DNA sequencing allows the identification of known insertions and deletions without the need for prior PCR.
a) Only statements I and II are correct.
b) Only statements I, II, and IV are correct.
c) Only statements I, II, and V are correct.
d) Only statements I, III, and IV are correct.
e) Only statements II, III, and V are correct.
I - Genetic variations that frequently occur in the human population without causing diseases are called polymorphisms.
II - SNP, or single nucleotide polymorphisms, are singular changes in the nucleotides that form the DNA.
III - Polymorphisms are changes in amino acids resulting from variations in the DNA sequence.
IV - There is no exact way to identify a polymorphism, only insertions and deletions.
V - DNA sequencing allows the identification of known insertions and deletions without the need for prior PCR.
a) Only statements I and II are correct.
b) Only statements I, II, and IV are correct.
c) Only statements I, II, and V are correct.
d) Only statements I, III, and IV are correct.
e) Only statements II, III, and V are correct.
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Ed 
A alternativa correta é a letra "a) Apenas as afirmações I e II estão corretas". Explicação: I - Variações genéticas que ocorrem frequentemente na população humana sem causar doenças são chamadas de polimorfismos. II - SNP, ou polimorfismos de nucleotídeo único, são mudanças singulares nos nucleotídeos que formam o DNA. As outras afirmações estão incorretas: III - Polimorfismos não são mudanças nos aminoácidos, mas sim nas sequências de DNA. IV - É possível identificar polimorfismos de outras maneiras além de inserções e deleções. V - A sequência de DNA não permite a identificação de inserções e deleções conhecidas sem a necessidade de PCR.
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