Gene mutations exam UPDATED ACTUAL Exam Questions and CORRECT Answers

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