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Question
Which of the following sequences are contained in YACs that form a small complete yeast chromosome?
Options
OriS, repE and parA sequences
T7, SP6 and lacZ sequences
Telomeric, centromeric and origin of replication (ori) sequences
Promoter, terminator and enhancer sequences
MCQ
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Solution
YACs contain telomeric, centromeric and origin of replication (ori) sequences, which together form a small complete yeast chromosome. These elements allow the YAC to behave like a true yeast chromosome.
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