Gene mutations exam UPDATED ACTUAL
Exam Questions and CORRECT Answers
mutation - CORRECT ANSWER - change in dna sequence that affects genetic info
spontaneous mutation - CORRECT ANSWER - abnormalities in biological process
induced mutation - CORRECT ANSWER - environmental factors
gene mutation - CORRECT ANSWER - occurs when 1 or several nucleotides are altered in a
gene
point mutation - CORRECT ANSWER - gene mutation occurring at a base pair in the DNA
sequence
substitution (a point mutation) - CORRECT ANSWER - one base is substituted for another
base pair
frameshift mutation (a point mutation) - CORRECT ANSWER - involves addition (insertion)
or subtraction (deletion) of nucleotides
Chromosomal mutation - CORRECT ANSWER - changes in number or structure of
chromosomes
Deletion (CM) - CORRECT ANSWER - loss of all or part of a chromosome
Duplication (CM) - CORRECT ANSWER - segment of chromosome gets repeated
Exam Questions and CORRECT Answers
mutation - CORRECT ANSWER - change in dna sequence that affects genetic info
spontaneous mutation - CORRECT ANSWER - abnormalities in biological process
induced mutation - CORRECT ANSWER - environmental factors
gene mutation - CORRECT ANSWER - occurs when 1 or several nucleotides are altered in a
gene
point mutation - CORRECT ANSWER - gene mutation occurring at a base pair in the DNA
sequence
substitution (a point mutation) - CORRECT ANSWER - one base is substituted for another
base pair
frameshift mutation (a point mutation) - CORRECT ANSWER - involves addition (insertion)
or subtraction (deletion) of nucleotides
Chromosomal mutation - CORRECT ANSWER - changes in number or structure of
chromosomes
Deletion (CM) - CORRECT ANSWER - loss of all or part of a chromosome
Duplication (CM) - CORRECT ANSWER - segment of chromosome gets repeated
