7. Transposable elements are known as jumping genes and are believed to play a regulatory role in deciding which genes are swiched on or off
True
False
8. ___________ measures the mutagenicity of compounds
The Aimes test
The Luria Delbruck fluctuation test
9. Mutational changes outside of coding regions never have any affect on phenotype
False
True
10. A pyrmidine base is replaced with a purine base
A transversion mutation
A transition mutation
11. Sex chromosome linked mutations occur
In X or Y
In autosomal chromosomes
12. Mutations only occur in the prescence of mutagens
False
True
13. A wildtype gene is changed into a form that results in a mutant phenotype
Forward mutation
Reverse mutation
14. Other transposable elements in bacteria are called _____ elements and only carry one gene, the product of which is required for their mobility - transposase
Insertion
Removal
15. Insertion/deletions are types of point mutations, they are _________
Frameshifts
Silent, missense and nonsense
16. Sickle cell aneamia is caused by
A missense mutation
A nonsense mutation
17. Visible mutations are ________
Morphological
Biochemical
18. Insertion is one or mole extra nucleotides present
True
False
19. If a supressor mutation occurs in a different gene
Intergenic
Intragenic
20. A mutation that produces a greater than normal level of gene expression
