Molecular-Basis-Of-Inheritance Question 206
Question: Transposable genetic elements:
Options:
A) Always affect the cell adversely, because when they move, they inactivate genes.
B) Are retroviruses.
C) Provide a mechanism for moving genetic material from organelle genomes to the nuclear genome.
D) Always replicate their DNA when they want.
Show Answer
Answer:
Correct Answer: C
Solution:
[c] Transposable elements of not always have an adverse effect on genes; sometimes their insertion can create new genes.
Retrotransposons are like retroviruses, but lack the genes for the viral proteins.
DNA transposons do not replicate their DNA before they move to a different site on the chromosome.
BETA
