AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

TRANSPOSONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Some transposable elements are non replicative, they move without making copy of themselves
A
True
B
False
Explanation: 

Detailed explanation-1: -Transposable elements (TEs) are mobile DNA sequences capable of replicating themselves within genomes independently of the host cell DNA.

Detailed explanation-2: -Transposable elements (TEs) are defined as DNA sequences that are able to move from one location to another in the genome. TEs have been identified in all organisms, prokaryotic and eukaryotic, and can occupy a high proportion of a species’ genome.

Detailed explanation-3: -Transposons are mobile genetic elements that are capable of self-replicating and inserting themselves into the genome. Whole-genome sequencing has shown that transposons made up 33% of the human genome and are one of the factors leading to dysregulation of diseases such as cancer and neurodegenerative diseases.

Detailed explanation-4: -Simple, or conservative transposition, is a non-replicative mode of transposition. That is, in conservative transposition the transposon is completely removed from the genome and reintegrated into a new, non-homologous locus, the same genetic sequence is conserved throughout the entire process.

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