Chromosome variation

Question 1

homologous recombination

Answer 1

DNA segments that are similar to each other break and rejoin to form a new combination

Question 2

site specific recombination

Answer 2

nonhomologous DNA segments are recombined at specific sites

Question 3

transposable elements

Answer 3

small segments of DNA that move themselves to multiple locations within chromosomal DNA

Question 4

harlequin chromosome

Answer 4

reveals recombination after BrdU staining between sister chromatids

Question 5

holliday junction

Answer 5

the mechanism of crossing over between two homologous chromosomes

Question 6

viral integration

Answer 6

some virus integrate DNA into host chromsome by site specific recombination

Question 7

antibody recombination

Answer 7

site specific recombination of v and j regions for light chain; v, d, and j regions for heavy chain variable

Question 8

recombination signal

Answer 8

recognition site for site specific recombination between the v and j regions

Question 9

NHEJ proteins

Answer 9

non-homologous end-joining proteins; connection phase of V(D)J recombination