拔出 发表于 2025-3-26 21:34:16
remove potentially lethal lesions at the expense of making mutations. The error-avoiding systems asso ciated with replication are themselves complex and may be caused to make mistakes in various ways. These different pathways for mutation production and mutation avoidance are still being worked out in prokar978-1-4684-3844-4978-1-4684-3842-0BINGE 发表于 2025-3-27 02:30:07
Realignment of the Patellofemoral Jointin vitro by reaction with mutagens can be observed in a øX174 system in which the nucleotide sequence is known. DNA polymerase I catalyzed synthesis is blocked one nucleotide before the reacted base on the template strand. In contrast, with some damaged templates, AMV reverse transcriptase can inserDna262 发表于 2025-3-27 09:17:49
Articular Cartilage of the Knees or leaky alleles of loci which have indispensable cellular functions. In several cases, both leaky and null alleles have been identified, indicating that at least some of these loci represent apparently dispensable cellular functions..The mutagen sensitivity of doubly-mutant . strains is being emp向前变椭圆 发表于 2025-3-27 09:39:43
http://reply.papertrans.cn/27/2602/260184/260184_34.png斜 发表于 2025-3-27 17:12:45
Articular Cartilage of the Kneeess have been identified. Identification of an AP-endonuclease activity suggests that Drosophila may possess a base excision mechanism. A technical advance is also described which will permit biochemical analysis of stocks in which homozygous females are sterile.没有希望 发表于 2025-3-27 18:03:14
Articular Cartilage of the Kneehe mutant .. was found to be unable to process lesions induced by the crosslinking agent nitrogen mustard (HN2) into point mutations (measured as sex-linked recessive lethals). Alkylation damage leads to increased point mutation frequencies in the excision repair deficient mutant .., but to reduced使痛苦 发表于 2025-3-28 00:24:23
Articular Cartilage of the Kneeotes. From the series of reports that are included here, it is eminently clear that much progress has been made in our understanding the process of repair in eukaryote DNA and its relationship to mutagenesis. It is also evident from the research results presented that experimentation with . will furanatomical 发表于 2025-3-28 04:46:29
http://reply.papertrans.cn/27/2602/260184/260184_38.png变态 发表于 2025-3-28 08:31:06
Articulating Novelty in Science and Artrepair, reaching a minimum level by 6 hr; this decrease correlated temporally with the repair of the slowly rejoining DNA strand breaks. The possible relationship of DNA repair to changes in survival and chromosome aberrations is discussed.myopia 发表于 2025-3-28 11:06:58
Form: How Materials Become Effectiveobservations are also in line with idea that the majority of sister chromatid exchanges can arise when damage DNA attempts replication possibly by a process relating with the replicative bypass repair mechanisms such as those proposed by Fujiwara and Tatsumi and Higgins et al. , while chrom