How Can Broken DNA Be Repaired In Space?News Staff
By sacking the team members that check DNA is repaired properly, cancer cells are treading a fine line. If they get rid of too many of the crew and completely lose the ability to fix DNA, it will become so chaotic and disorganised that the cell dies. So can researchers can take advantag...
DNA, the carrier of our genetic information, is exposed to continual damage. In the most serious damage of all, the DNA double-strand break, both strands of thedouble helixare broken and the helix is divided in two. If breaks like this are not efficiently repaired by the cell, important ...
DNA is the genetic information carrier molecule in the cell and thus it is very essential to keep the genetic information intact. Even though DNA holds a prime position, it is one of the highly susceptible molecules in the cells because DNA can be damaged by a number of factors both interna...
Molecular machines seek to copy the code perfectly, but random slipups in their work can cause the daughter cells to die or malfunction. DNA can also be damaged by strong sunlight and other environmental factors. But there is a swarm of proteins — a molecular repair kit — designed to moni...
and their DNA is frequently exposed and rarely repaired. 其DNA 经常暴露但极少复原。 So they die off more often than most other cells, 所以比其他多数细胞更常相继死去, which have time to fix damaged DNA 后者有时间修复受损的 DNA, and don’t accumulate the same concentrations of alkylating agent...
Describe some of the mistakes that can occur during DNA replication and how they are repaired. (a) Explain the steps that are involved in DNA replication. (b) How do errors in DNA replication are corrected? Explain how DNA is proofread and repaired, if possible when damaged or incorrectly ...
Explain how DNA is proofread and repaired, if possible when damaged or incorrectly copied. The enzyme responsible for proofreading a growing DNA strand and for replacing mismatched nucleotides is: A. helicase B. DNA ligase C. topoisomerase II D. DNA replicase E. DNA polymerase...
This damaged DNA self-repaired and healed when exposed to the RH frequencies. As a result, it coiled back into its normal, healthy state, which had been impossible for isolated DNA to do. We’ll look in detail at the results of these experiments in Chapter 2....
What does it mean to say that DNA replicates semi-conservatively? a. Some errors are made during DNA replication, but these errors are usually repaired. b. When DNA is replicated, each daughter cell is 50% genetically identical to the parent cell and to e ...