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About Transposons and Insertion Sequence (IS)

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About Transposons and Insertion Sequence (IS)

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Questions and Answers

What is the main function of insertion sequences?

Moving through 'copy-and-paste' mechanism
Facilitating the transfer of antibiotic resistance genes
Encoding additional genes
Causing mutations by disrupting genes or regulatory regions (correct)

How do insertion sequences move within the genome?

Through 'copy-and-paste' mechanism
By encoding a transposase enzyme (correct)
By recognizing specific sequences at the ends of the element
By carrying additional genes

What is a key difference between transposons and insertion sequences?

Transposons do not encode any additional genes
Transposons can carry genes that provide additional functions (correct)
Insertion sequences are generally larger and more complex
Transposons move only within the same genome

Which mechanism is unique to transposons, but not to insertion sequences?

'Copy-and-paste' mechanism (C) Signup and view all the answers

What is the primary limitation of insertion sequences in terms of mobility?

Limited to movement within the same genome (D) Signup and view all the answers

Which of the following is a characteristic of transposons?

They are typically larger in size and contain additional genes (B) Signup and view all the answers

What is the mechanism by which insertion sequences (IS) move within the genome?

Cut-and-paste mechanism (A) Signup and view all the answers

Which mobile genetic element can cause the phenomenon of hybrid dysgenesis in fruit flies?

Transposons (A) Signup and view all the answers

What role do transposons play in genome evolution and genetic diversity?

They play important roles in genome evolution and genetic diversity (B) Signup and view all the answers

What is a defining characteristic of insertion sequences (IS)?

They are the simplest form of transposable elements (B) Signup and view all the answers