Transposable genetic elements

Question 1

Barbara McClintock

Answer 1

jumping genes

Ac Ds

Question 2

cut-and-paste

Answer 2

cut out of one site in a chromosome and pasted into a new site on the same or different chromosome

Question 3

replicative (copy-and-paste)

Answer 3

one copy is inserted at a new site while the other remains at the original site

Question 4

retro-transposition

Answer 4

first transcribed into RNA which is reverse transcribed back into DNA followed by insertion of the DNA into a new site on the same or different chromosome

Question 5

IS elements

Answer 5

contain only genes which encode enzymes involved in transposition

Question 6

composite transposons

Answer 6

created when two IS elements insert near each other

Question 7

Ds

Answer 7

chromosome breakage

Question 8

Ac

Answer 8

encodes transposase

Question 9

Retrovirus

Answer 9

transcribe RNA into DNA