Suppose that you want to sequence the following DNA fragment: 5' – TCCCGGGAAA - primer site - 3' You first use PCR to amplify the fragment, so that there is sufficient DNA for sequencing. You carry out dideoxy sequencing and then separate the products of the sequencing reactions by gel electrophoresis. Draw the bands that should appear on the gel from the four sequencing reactions.

weathering is the answer.

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.