Question

Hease complete each sentence using the words or phrases below. (Not all words and phrases are used.) single-strand break 3' double-stranded tails D-loop 3' single-stranded tails resolvase double-strand break anticrossover helicase branch migration nonsister chromatid sister chromatid meiosis Holliday junctions mitosis mitosis heteroduplex heteroduplex During meiotic prophase, a is made in one of the chromatids of one homolog. In resection, the 5' ends at the break are degraded, leaving two . The invading strand base One of the tails invades the nearby double strand of the pairs with one of the two strands, and the displaced strand forms a This loop then base pairs with the non-invading 3 tail, and new DNA synthesis fills in the gaps, forming two X-shaped The region between these two junctions is termed the region. This region is enlarged as the junctions move outward in a zipper-like fashion. so that the chromatids can separate and Eventually the junctions must be resolved by can continue. Reset

Answer 1

1.double strand break

2.3' single stranded tails

3.non sister chromatid, D-loop

4.Holiday junction

5.Heteroduplex, branch migration

6.Resolvase, meiosis