Genetics and Mutations Quiz

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Test your genetics basics.

Estela Costa

Portugal

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Genetics and Mutations Quiz


Genetics and Mutations QuizOnline version Test your genetics basics. by Estela Costa 1 What constitutes the total DNA of an organism? a Its genome b Its cell cycle c Its genetic code d Its karyotype 2 A gene is a sequence of nucleotides that gives rise to a DNA molecule. a True b It gives rise to protein only c False d It encodes RNA only 3 In a protein, the type and order of the amino acids determine its function. a False b Nucleotides determine function c Fatty acids determine function d True 4 A permanent change in the DNA sequence is called a gene mutation and does not always change the encoded protein. a True b False c It never changes the protein d It always changes the protein 5 Mutations can be by deletion, insertion, or substitution. a Only deletion b Only insertion c True d Only substitution 6 Silent mutations are when the codon changes but encodes a different amino acid. a True b They always stop translation c False d They always alter function 7 Which mutation removes one or more nucleotides from the genetic sequence? a Duplication b Insertion c Deletion d Substitution 8 Which mutation adds nucleotides into the sequence? a Inversion b Substitution c Insertion d Deletion 9 Which mutation replaces one nucleotide with another? a Duplication b Insertion c Substitution d Deletion 10 A codon change that does not alter the amino acid is called a silent mutation. a False b True c Always harmful d Always beneficial