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Review Unit 9.1: Mutations
Test Description: A review from part 1 of Unit 9: Mutations, Change, Diversity
Instructions: Answer all questions to get your test result.
1) By definition, any mutation is...
A
a result of damaged cells
B
any change to the traits which are beneficial to an organism
C
any physical trait that is expressed
D
any change in the DNA sequence/genetic information
2) The two MAIN categories of Mutations are
A
expressed and lethal
B
Genetic and chromosomal
C
Base change and nondisjunction
D
Good and bad
3) The category of mutations resulting from the changing/altering of nucleotides in any way.
A
genetic
B
germline
C
autosomal
D
chromosomal
4) A category of mutations when the condensed chromatin structure is damaged or misplaced.
A
lethal
B
indels
C
chromosomal
D
autosomal
5) Which one IS NOT referring to a 'Base Change' mutation?
A
occurs when codons are misread during 'translation'
B
substitution and/or point mutations
C
caused by errors in DNA replication
D
effects are minimal
6) Which one best describes how many mutations, out of the total amount of mutations in one organism, have NO effect on the organism?
A
None
B
Some
C
All
D
Most
7) Which one IS NOT a way that organisms survive inevitable mutations
A
tolerance of a certain level of mutation
B
destruction of cells that are mutated beyond repair
C
repair of mutational damage
D
more beneficial mutations than negative mutations
8) Which type of Chromosomal mutation is when homologous pairs fail to segregate during gamete formation?
A
Breakage
B
Non-disjunction
C
Karyotypic
D
Recombination
9) Chromosomal mutations can be caused by all of the following EXCEPT for which one?
A
ionizing radiation
B
mechanical stress
C
chemical attack
D
misread codons
10) A photomicrograph of human chromosomes used to detect chromosomal mutations.
A
frameshift
B
punnet square
C
karyotype
D
pedigree
*select an answer for all questions
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