Multiple Choice
Transposons encode the enzyme _________ which catalyzes the insertion of the transposon.
16. Microbial Genetics
Genome Variability
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Which of the following answers about genomic islands is a true statement?
A
Genomic islands create genetic variability within a species.
B
Genomic islands originated from a different species than the one they currently reside in.
C
Genomic islands can hold pathogenic genes which allows the bacteria they reside in to cause disease.
D
All of the above are true statements about genomic islands.
Verified step by step guidance1
Understand the concept of genomic islands: Genomic islands are segments of DNA that are found in the genome of a bacterium but are believed to have originated from a different species. They are often acquired through horizontal gene transfer.
Recognize the role of genomic islands in genetic variability: Since genomic islands are acquired from different species, they introduce new genetic material into the host genome, contributing to genetic variability within a species.
Identify the potential for pathogenicity: Genomic islands can carry genes that confer advantageous traits, such as antibiotic resistance or virulence factors, which can enable the host bacterium to cause disease.
Evaluate the statements: Each statement provided in the problem describes a characteristic or role of genomic islands. Consider how each statement aligns with the known functions and origins of genomic islands.
Conclude that all statements are true: Based on the understanding of genomic islands, recognize that all the provided statements accurately describe aspects of genomic islands, confirming that the correct answer is that all statements are true.
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