Proofreading 1. You are given the following short segment of DNA double helix. S
ID: 199767 • Letter: P
Question
Proofreading
1. You are given the following short segment of DNA double helix. Strand 1 – 5’ A – A – T – T – C – G – C – T – A – G – C – 3’ Strand 2 - 3’ T – T – A – A – G – C – G – A – T – C – G – 5’ (anti-parallel) Give the compliment for each strand and explain how the new 2 short segments of DNA double helix will appear.
2. After several generations of replication, the above strand of DNA appears as such immediately after being copied. Strand 1 – 5’ A – A – T – T – C – G – C – T – A – G – C – 3’ Strand 2 - 3’ T – T – A – A – G – G – C – T – T – C – G – 5’ (anti-parallel) Describe the concern here and what will be done to correct the problem.
Explanation / Answer
Compliment for 1- 3’ TTAAGCGATCG5’
For 2- 5’ AATTCGCTAGC3’
The short segment occur by replication of dna strands
2- there is one base pair defect in the chain which can be corrected by dna repair by dna polymerase enzyme .
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