THE MOLECULAR BASIS OF INHERITANCE
TRANSPOSONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Plasmid DNA to chromosomal RNA
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Chromosomal DNA to plasmid DNA
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Plasmid RNA to chromosomal DNA
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Chromosomal RNA to plasmid DNA
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Detailed explanation-1: -Transposons can transfer from a plasmid to other plasmids or from a DNA chromosome to plasmid and vice versa that cause the transmission of antibiotic resistance genes in bacteria.
Detailed explanation-2: -A transposon enters a bacterial cell by a bacteriophage. A transposon can move from the host DNA to a plasmid.
Detailed explanation-3: -Conjugation is the process by which one bacterium transfers genetic material to another through direct contact. During conjugation, one bacterium serves as the donor of the genetic material, and the other serves as the recipient. The donor bacterium carries a DNA sequence called the fertility factor, or F-factor.
Detailed explanation-4: -Transposable elements (TEs), also known as “jumping genes” or transposons, are sequences of DNA that move (or jump) from one location in the genome to another. Maize geneticist Barbara McClintock discovered TEs in the 1940s, and for decades thereafter, most scientists dismissed transposons as useless or “junk” DNA.