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- 1. Multiple Choice
The portion or segment of the DNA strand that codes for a particular protein is called a _____________________.
gene
chromosome
codon
anticodon
- 2. Multiple Choice
3 bases in a row on the mRNA strand, that call for a particular amino acid to be added to the polypeptide chain:
chromosome
gene
codon
anticodon
- 3. Multiple Choice
Which statement best defines a mutation?
a physical trait that negatively impacts the organism
an adaptive trait that allows the individual to be better fit for survival
a change in the order, number, or type of bases in the genetic code
an identical copy of the original DNA strand
- 4. Multiple Choice
Mutations are always bad/harmful.
True
False
- 5. Multiple Choice
Possible negative consequences of mutations could be genetic ____________________ and cancer.
diversity
disorders
dominance
duplication
- 6. Multiple Choice
Chemical or physical agents in the environment that may cause mutations are called:
mutants
mutagens
chromosomal mutations
missense mutations
- 7. Multiple Choice
Mutations that change a single base pair, usually involving a substitution of one base for another:
chromosomal mutation
polyploidy
translocation
point mutation
- 8. Multiple Choice
If a point mutation does not change the order of the amino acid sequence, this is called a:
nonsense mutation
silent mutation
missense mutation
frameshift mutation
- 9. Multiple Choice
Insertions and deletions are also known as:
frameshift mutations
chromosomal mutations
silent mutations
polyploidy
- 10. Multiple Choice
If a mutation codes for "stop" in the amino acid chain, this is called a:
nonsense mutation
missense mutation
silent mutation
frameshift mutation
- 11. Multiple Choice
If UCU is changed to UCC, this is a _______________________________.
silent mutation
missense mutation
nonsense mutation
frameshift mutation
- 12. Multiple Choice
Which of the following mutations would be the most likely to affect the resulting protein?
substitution
silent mutation
frameshift mutation
all mutations affect the resulting protein
- 13. Multiple Choice
Mutations that change the amino acid specified by the codon, affecting the amino acid sequence, are called:
nonsense mutations
missense mutations
silent mutations
all of the above
- 14. Multiple Choice
Changes to the number or structure of chromosomes are called chromosomal mutations. Which of the following is NOT a type of chromosomal mutation?
deletion
duplication
inversion
translation
- 15. Multiple Choice
______________________________________ is a type of chromosomal mutation when part of the chromosome breaks off and attaches to another chromosome.
duplication
translocation
subtraction
deletion
- 16. Multiple Choice
This type of chromosomal mutation produces an extra copy of all or part of the chromosome:
multiplication
replication
duplication
inversion
- 17. Multiple Choice
If part of the chromosome is turned around in the opposite direction this is called:
inversion
translocation
deletion
duplication
- 18. Multiple Choice
In some cases this condition of having extra sets of chromosomes can be beneficial, such as in certain plants that are stronger and larger as a result.
polyploidy
point mutation
frameshift mutation
inversion
- 19. Multiple Choice
Individuals who inherit the gene for sickle shaped red blood cells from ____________________________, have an advantage in parts of the world where malaria is common.
only one parent
both parents
neither parent
- 20. Multiple Choice
Mutations can be beneficial because they increase genetic _____________________ and can make the individual and species more likely to survive.
diseases
complications
disorders
diversity
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